
Quadratics Alg1 Sem2 College Alg Sem1
Presentation
•
Mathematics
•
9th - 12th Grade
•
Hard
Milan Prajapati
FREE Resource
29 Slides • 150 Questions
1
Quadratics Alg1 Sem2, College Alg Sem1 Pt.1
x can be any variable say y, or z, whatever you choose its your option
1 -> x0 0th degree horizontic x12 -> 12th degree duodecic
x -> x1 1st degree, liniaric x13 -> 13th degree tredecic
x2 -> 2nd degree, squaric x14 -> 14th degree quadecic
x3 -> 3rd degree, cubic x15 -> 15th degree quindecic
x4 -> 4th degree, quartic x16 -> 16th degree sesdecic
x5 -> 5th degree, quintic x17 -> 17th degree septidecic
x6 -> 6th degree, sestic x18 -> 18th degree octodecic
x7 -> 7th degree, septic x19 -> 19th degree novemdecic
x8 -> 8th degree, octic x20 -> 20th degree vigintic
x9 -> 9th degree, nonic x21 -> 21st degree, unvigintic
x10 -> 10th degree, decic x22 -> 22nd degree, duovigintic
x11 -> 11th degree undecic x23 -> 23rd degree, trevigintic
2
Multiple Choice
1. b(n)=n17 what degree is it?
17th degree, quindecic
17th degree, septidecic
17th degree, sesdecic
16th degree, sesdecic
3
Multiple Choice
2. k(b)=b18 what degree is it?
18th degree, quindecic
18th degree, duodecic
18th degree,duovigintic
18th degree, octodecic
4
Multiple Choice
3. g(h)=h7 what degree is it?
7th degree, septic
7th degree, octic
7th degree, nonic
7th degree, decillic
5
Multiple Choice
4. q(w)=w11 what degree is it?
21th degree, unvigintic
21th degree, undecic
11th degree, unvigintic
11th degree, undecic
6
Multiple Choice
5. y(x)=x8 what degree is it?
8th degree decic
8th degree octic
10th degree octic
10th degree decic
7
Quadratics Alg1 Sem2, College Alg Sem1 Pt.2
lets study more of these examples i know this is a different type of math
say we have xn and we want to express something right heres something to express we know we let n be a power base on x so we know when
n=0 its horizontic, n=9 its nonic,
n=1 its linearic, n=10 its decic, and so on but what if we deal with higher order sa
n=2 its squaric, n=20 its vigintic, n=90 its nonagintic,
n=3 its cubic, n=30 its trigintic, n=100 its centic,
n=4 its quartic, n=40 its quadragintic, what if n=97 we can rewrite it as x97 since n is
n=5 its quintic, n=50 its quinquagintic, x power we will write since it at 90s place
n=6 its sestic, n=60 its sesagintic, we will add nonagintic when we subtract that
n=7 its septic, n=70 its septuagintic, number by 90 so 97-90=7 since we get 7
n=8 its octic, n=80 its octuagintic, we get septic we remove tic on the side move it on the left we get sepnonagintic i want you to try the rest of these excerises on your own and see how far you get good luck
8
Multiple Choice
6. w(r)=r67 what degree is it?
27th degree, sesquadrigintic
27th degree, septiquadrigintic
27th degree, septitrigintic
27th degree, septivigintic
9
Multiple Choice
7. d(t)=t4 what degree is it?
44th degree, untrigintic
44th degree, quaquadrigintic
44th degree, sestrigintic
44th degree, septiquadrigintic
10
Multiple Choice
CHALLANGE 8. h(j)=j35 what degree is it?
35th degree, quinvigintic
35th degree,quintrigintic
35th degree, septitrigintic
35th degree, septiquadrigintic
11
Multiple Choice
9. f(a)=a100 what degree is it?
39th degree, trigintic
39th degree, novemtrigintic
39th degree, quinquadrigintic
39th degree, septiquadrigintic
12
Multiple Choice
10. s(y)=y41 what degree is it?
41th degree, unquintrigintic
41th degree, unquadrigintic
41th degree, quaquadrigintic
41th degree, novemvigintic
13
Quadratics Alg1 Sem2, College Alg Sem1 Pt.3
x -> 1 term -> monomial, 14 term's -> quadecinomial
x+y -> 2 term's -> binomial, 15 term's -> quindecinomial
x+y+z -> 3 term's -> trinomial, 16 term's -> sesdecinomial
x+y+z+a -> 4 term's -> quadrinomial, 27 term's -> septenvigintinomial
5 term's -> quintinomial, 18 term's -> octodecinomial | what ever is bold its an
6 term's -> sestinomial, 19 term's -> novemdecinomial | polynomial
7 term's -> septinomial, 20 term's -> vigintinomial
8 term's -> octinomial, 21 term's -> unvigintinomial
9 term's -> nonomial, 22 term's -> duovigintinomial
10 term's -> decinomial, 23 term's -> trevigintinomial
11 term's -> undecinomial, 24 term's -> quavigintinomial
12 term's -> duodecinomial, 25 term's -> quinvigintinomial
13 term's -> tredecinomial, 26 term's -> sesvigintinomial
14
Multiple Choice
11. classify x10+x5+1
decic trinomial
decic trinomial
cubic decinomial
cubic trinomial
15
Multiple Choice
12. classify x10+x8+x6+x4+x2+1
decic decinomial
decic sestinomial
decic trinomial
decic undecinomial
16
Multiple Choice
13. classify if there are 17 terms and its highest 90th degree
nonagintic novemdecinomial
septuagintic novemdecinomial
nonagintic septendecinomial
septuagintic septendecinomial
17
Multiple Choice
14. classify if there are 21 terms and its highest 45th degree
unvigintic quadecinomial
quinquadragintic quadecinomial
quinquadragintic unvigintinomial
unvigintic unvigintinomial
18
Multiple Choice
15. classify if there are 16 terms and its highest 37th degree
septemtrigintic sesdecinomial
Tretrigintic sesdecinomial
Tretrigintic tredecinomial
septemtrigintic tredecinomial
19
Quadratics Alg1 Sem2, College Alg Sem1 Pt.4
a -> 1 term -> monomial, 50 term's -> quinquagintinomial
a+b -> 2 term's -> binomial, 60 term's -> sesagintinomial
a+b+c -> 3 term's -> trinomial, 70 term's -> septuagintinomial
4 term's -> quadranomial, 80 term's -> octuagintinomial
5 term's -> quintinomial, 90 term's -> nonagintinomial
6 term's -> sestinomial, 100 term's -> centinomial
7 term's -> septinomial, note when its bold its polynomial, when it has 78 terms we
8 term's -> octinomial, can do the math so since its tens place is 7 its at
9 term's -> noninomial, septuagintinomial then its ones place is 8 its octinomial
10 term's -> decinomial, we put the lower term num variable on the left we get
20 term's -> vigintinomial, octoseptuagintinomial
30 term's -> trigintinomial
40 term's -> quadrigintinomial
then we
20
Multiple Choice
16. classify if there are 63 terms and its highest 78th degree
octoseptugintinic octoseptuagintinomial
tresesagintinic octoseptuagintinomial
tresesagintinic tresesagintinomial
octoseptugintinic tresesagintinomial
21
Multiple Choice
17. classify if there are 89 terms and its highest 100th degree
novemoctuagintic novemoctuaginomial
novemoctuagintic centinimial
centic centinimial
centic novemoctuaginomial
22
Multiple Choice
18. classify if there are 63 terms and its highest 84th degree
quaoctuagintinomial quaoctuagintic
tresesagintinomial quaoctuagintic
tresesagintinomial tresesagintic
quaoctuagintinomial tresesagintic
23
Multiple Choice
19. classify if there are 100 terms and its highest 100th degree
centic centinomial
centic decinomial
decic decinomial
decic centinomial
24
Multiple Choice
20. classify if there are 88 terms and its highest 99th degree
novemnonagintinic novemnonagintinomial
octooctuagintinic novemnonagintinomial
octooctuagintinic octooctuagintinomial
novemnonagintinic octooctuagintinomial
25
Quadratics Alg1 Sem2, College Alg Sem1 Pt.5
lets classify some polynomials f(x)=5x5+9x4+20x3+37x2+74x+74 we can find the leading coefficient from this sestinomial for o=the leading coefficient we must look for the degree which in that case is x5 we see 5 proof f(x)=5x5+9x4+20x3+37x2+74x+74 is been multiplied so we can conclude our leading coefficient is 5 to find the constant we must look for something that does not have the variable respected to if f(x)=x no constant but if its different variable then it is an constant we can proove it f(x)=5x5+9x4+20x3+37x2+74x+74 we can see 74 is the constant so our constant is 74, now that is it with today lecture now i want you to try the rest of these excersizes on your own and see how far you get.
26
Multiple Choice
21. describe 8x3+7x5+6x3+5x2+4+3x
leading coefficient 7
constant 3
leading coefficient 7
constant 4
leading coefficient 8
constant 3
leading coefficient 8
constant 6
27
Multiple Choice
22. describe 6j8+5j5+6j3+7j2+2j7+3j6+6j+2j4
leading coefficient 8
constant 4
leading coefficient 8
constant 0
leading coefficient 6
constant 0
leading coefficient 6
constant 2
28
Multiple Choice
23. describe 7y5+4y4+6y7+8y8+24+2y2
leading coefficient 8
constant 24
leading coefficient 7
constant 2
leading coefficient 8
constant 0
leading coefficient 8
constant 4
29
Multiple Choice
24. describe 10+9p+8p2+7p7+6p4+5p5+4p6+3p3+2p8+p9+p10/2
leading coefficient 1
constant 10
leading coefficient 1/2
constant 10
leading coefficient 10
constant 0
leading coefficient 2
constant 10
30
Multiple Choice
25. describe o5+o4+o3+o2
leading coefficient 1
constant 0
leading coefficient 0
constant 0
leading coefficient 1
constant 1
leading coefficient 0
constant 1
31
Quadratics Alg1 Sem2, College Alg Sem1 Pt.6
you might be familliar with combining like terms but heres another one we like tos how a ploblem 2x2+x+x2+6+1+7x+8x2 we want to group the variables by power we get 2x2+x+x2+6+1+7x+8x2=8x2+x2+2x2+7x+x+6+1 add them up combine like terms 8x2+x2+2x2+7x+x+6+1=11x2+8x+7 lets try another one this time dealing with negative constants 3x2+4x2+7-8-42x2+50x+50x2+100-25x again rearrange variables by power we get 3x2+4x2+7-8-42x2+50x+50x2+100-25x=3x2+4x2-42x2+50x2+50x-25x+7-8+100 then combine like terms 3x2+4x2-42x2+50x2+50x-25x+7-8+100=15x2+25x+99 lets try another one 7x+32x2+55x-28x2+33x2-100x2-100x+45 again as usual rearrange variables by power we get
7x+32x2+55x-28x2+33x2-100x2-100x+45=32x2-28x2+33x2-100x2+7x+55x-100x+45
=-63x2-38x+45 now i want you to try the rest of the excersize on you own and see how far you get
32
Multiple Choice
CHALLANGE 26. 6f3+43f+6f2-24f-78+13f2-4f3+65
63f-13
63f
49f3-18f2-65f+61
2f3+19f2+19f-13
33
Multiple Choice
27. 5w+6w2-(14+7w)
6x2-2x+14
6x2+2x+14
6x2-2x-14
6x2+2x-14
34
Multiple Choice
28. 7+7t2-(t2+5t+6)
6t2-5t+1
8t2+5t+13
8t2-5t+1
6t2+5t+13
35
Multiple Choice
29. 8+7c2+6c-(c2-7c+5)+8c2+5c+7
19x2+8x+15
14x2+18x+10
7x2+9x+5
15x2+19x+8
36
Multiple Choice
CHALLANGE 30. h+√h5-√h3+√(36h5)+h√4+√(49h3)-√(36h2)
x+√(13x3)-√(40x5)
7√x5+6√x3-3x
√(37x5)+√(48x3)+x√5-√(36x2)
x+√(13x3)+√(40x5)
37
Quadratics Alg1 Sem2, College Alg Sem1 Pt.7
lets try one example multiplying monomials say i get 6x5(5x4) first we multiply the constant then do product rule 6x5(5x4)=30x5(x4)=30x5+4=30x9 lets try the last one this time dealing with roots 53√x5(6*5√x2+4*11√x10-7*5√x6) well first thing first is to seperate them so we get 53√x5(6*5√x2+4*11√x10-7*5√x6)=53√x5(6*5√x2)
+53√x5(4*11√x10)+53√x5(-7*5√x6)=303√x5*5√x2+203√x5*11√x10-353√x5*5√x6
convert roots to exponitional fractions 303√x5*5√x2+203√x5*11√x10-353√x5*5√x6
=30x5/3x2/5+20x5/3x10/11-35x5/3x6/5 then use product rule 30x5/3x2/5+20x5/3x10/11
-35x5/3x6/5=30x5/3+2/5+20x5/3+10/11-35x5/3+6/5 then do add both fractions 3 of them 5/3+2/5=25/15+6/15=31/15 5/3+10/11=55/33+30/33=85/33 5/3+6/5
=25/15+18/15=43/15 so 30x5/3+2/5+20x5/3+10/11-35x5/3+6/5=30x31/15+20x85/33-35x43/15 now convert them back to root 30x31/15+20x85/33-35x43/15
=30(15√x31)+20(33√x85)-35(15√x43) now i want you to try the rest of these excerises on your own good luck.
38
Multiple Choice
31. d2(d3+5)
d5+5d2
d3+5
d5+5d3
d4+5d2
39
Multiple Choice
CHALLANGE 32. 7*7√s3(5*20√s17+14*17√s15+68*7√(s√s13))
5*140√s119+14*119√s156+68√s3
35*140√s119+98*119√s156+476√s3
35*20√s119+98*17√s156+4767√s3
5*20√s119+14*17√s156+687√s3
40
Multiple Choice
33. w(w+2)
w+2
w2
w
w2+2w
41
Multiple Choice
34. 6y5(3y2+5y7+4y5+2y3)
3y2+5y7+4y5+2y3
3y12+5y10+4y8+2y7
30y12+24y10+12y8+18y7
30y7+24y5+12y3+18y2
42
Multiple Choice
CHALLANGE 35. 45a452(23a357+5a244+30a170+50a104+100a58)
1,035a809+225a696+1,350a622+2,250a556
+4,500a510
23a809+5a696+30a622+50a556+100a510
23a1,009+5a896+30a822+50a756
+100a610
1,035a1,009+225a896+1,350a822+2,250a756
+4,500a610
43
Quadratics Alg1 Sem2, College Alg Sem1 Pt.8
say i got an 2 binomials (x+5)(x+8) and we want to expand this expression so lets get to it so first thing first is seperate on the left side we get (x+5)(x+8)=x(x+8)+5(x+8) then separate again x(x+8)+5(x+8)=x(x)+x(8)+5(x)+5(8)
=x2+8x+5x+40=x2+13x+40 lets try another one this time dealing with binomial and trinomial (x2+5)(x2+9x+8) lets seperate on the left side we get (x2+5)(x2+9x+8)
=x2(x2+9x+8)+5(x2+9x+8) then seperate on the right side x2(x2+9x+8)
+5(x2+9x+8)=x2(x2)+x2(9x)+x2(8)+5(x2)+5(9x)+5(8)=x4+9x3+8x2+5x2+45x+40
=x4+9x3+13x2+45x+40 lets try another one (x+5)(x2+2x+7) first we must seperate on the left (x+5)(x2+2x+7)=x(x2+2x+7)+5(x2+2x+7) now seperate on the right side x(x2+2x+7)+5(x2+2x+7)=x(x2)+x(2x)+x(7)+5(x2)+5(2x)+5(7)=x3+2x2+7x+5x2+10x+35
=x3+7x2+17x+35 now i want you to try the rest of these problems and see how far you get good luck.
44
Multiple Choice
36. (a+b)(a-b)
a2+2ab+b2
a2+b2
a2-2ab+b2
a2-b2
45
Multiple Choice
37. (u+v)2
u2+2uv+v2
u2+v2
u2-2uv+v2
u2-v2
46
Multiple Choice
CHALLANGE 38. (c+1)3
c3+3c2+6c+1
c3+3c2+3c+1
c2+2c+1
c3+5c+1
47
Multiple Choice
CHALLANGE 39. (5*3√x2+4*4√x3+9*9√x7)(6*5√x3+7*6√x5+7*6√x7)
60*25√x34+70√x4+70*7√x14+48*30√x37
+56*6√x19+56*6√x23+108*45√x124+126*18√x109
+126*9√x35
30*19√x15+353√x2+35*11√x6+24*27√x20
+28*19√x12+28*23√x12+54*62√x45+63*29√x18
+63*35√x18
30*5√x19+35x3+35*2√x11+24*6√x27
+28*3√x19+28*3√x23+54*9√x62+63*3√x29
+63*8√x35
30*15√x19+35√x3+35*6√x11+24*20√x27
+28*12√x19+28*12√x23+54*45√x62+63*18√x29
+63*18√x35
48
Multiple Choice
40. (x-y)2
x2+2xy+y2
x2+y2
x2-2xy+y2
x2-y2
49
Quadratics Alg1 Sem2, College Alg Sem1 Pt.9
say i got an equation (x2+2x)/(3x) and we want to divide it so first i is to seperate them we get (x2+2x)/(3x)=x2/(3x)+2x/(3x) now simplfy the coefficients x2/(3x)+2x/(3x)=x2/(3x)+2x/(3x) next we divide the x we get x2/(3x)+2x/(3x)
=x2x-1/3+2x1x-1/3=x2-1/3+2x1-1/3=x/3+2x0/3=x/3+2/3=(x+2)/3 since the denominator is the same we put them together lets try another one this time dealing with trinomial (3x3+9x2+9x+7)/(3x) first we have to seperate the coefficients we get (3x3+9x2+9x+7)/(3x)=3x3/(3x)+9x2/(3x)+9x/(3x)+7/(3x) then simplify the coefficients we get 3x3/(3x)+9x2/(3x)+9x/(3x)+7/(3x)=x3/x+3x2/x+3x/x+7/(3x) then we divide the x we get x3/x+3x2/x+3x/x+7/(3x)=x3/x1+3x2/x1+3x1/x1+7/(3x1)=x3x-1+3x2x-1+3x1x-1+7x-1/3
=x3-1+3x2-1+3x1-1+7x-1/3=x2+3x+3x0+7/(3x)=x2+3x+3+7/(3x) lets try the last one now i want you to try the rest of the excersizes on your own and see how far you get
50
Multiple Choice
41. (5w4+20w3+60w2+120w+120)/(5w2)
w3+4w2+12w
w2+4w+12
w2+4w+12+24/w+24/w2
w4+4w3+12w2+24w+24
51
Multiple Choice
CHALLANGE 42. (5*3√k2-7*7√k3)/(8*7√k5)
(21√k-*7√k2)/8
(5*21√k-7*7√k2)/8
5/(8*21√k)-7/(8*7√k2)
(21√k+*7√k2)/8
52
Multiple Choice
43. (y2+1)/y
y+1
y2+1/y
y+1/y
y2+1
53
Multiple Choice
CHALLANGE 44. 25√(42525b600+62525b625)/(25b22)
25b603+17b578
42525b578+62525b603/25
25b578+17b603
25b3+17b2
54
Multiple Choice
45. √(n24+n12+n6)/4√n8
n16+n4+1/n2
n8+n2+1/x
n4+1/n2+1/n5
n10+n4+n
55
Quadratics Alg1 Sem2, College Alg Sem1 Pt.10
lets say i got a trinomial divided by binomial example (x2+438x+437)/(x+1) now lets work this one together we seperate the numberator which will look something like this first off we divide x2 by the highest degree of denominator on x x2/x=x now we can use that x and multiply the numerator we get x(x+1)=x2+x now we can subtract the numerator by x2+x we get (x2+438x+437-x2-x)/(x+1)=(437x+437)/(x+1) save the x for later for now lets divide 437x by x so 437x/x=437 then mutliply it by x+1 437(x+1)=437x+437 we can subtract again (437x+437-437x-437)/(x+1)=0/x+1
now we add those parts together x and 437 we get x+437 so in conclusion (x2+438x+437)/(x+1)=x+437 now i want you to try the rest of the problems on your own and see how for you get.
56
Multiple Choice
CHALLANGE 46. (10s3+7s2+13s-20)/(2s2+3s+5)
5s-4
5s+4
5s-4+(9-7s)/(2s2+3s+5)
5s-4+(9+7s)/(2s2+3s+5)
57
Multiple Choice
47. (s2-4)/(s+2)
s-2
s+2
s-4
s+4
58
Multiple Choice
CHALLANGE 48. (d5+5d4+10d3+10d2+5d+1)/(d3+3d2+3d+1)
d2+3d+3
d2+3d+1
d2+1
d2+2d+1
59
Multiple Choice
49. (f2+6f+9)/(f+3)
f+3
f+2
f+1
f
60
Multiple Choice
CHALLANGE 50. (x4+3x4y2+6x3y2+2x3y+6x2y2+2xy3+3x2y4+6xy4+y4)/(x+y)2
x2+3x2y2+3xy2+y2
x2+3x2y2+6xy2+y2
x2+6x2y2+3xy2+y2
x2+6x2y2+6xy2+y2
61
Quadratics Alg1 Sem2, College Alg Sem1 Pt.11
lets say i want to factor 50x4+20x3+10x2 so what we can do is to find the lowest term in this equation which is x2 so we separate it we get 50x4+20x3+10x2
=x2(50x2+20x+10) now find the lowest coefficient and see if others are factorable if not reduce it until you get the exact one x2(50x2+20x+10)=x2(10*5x2+10*2x+10*1)
=10x2(5x2+2x+1) lets try another one 15x20+6x8+30x18+21x2+54x16+18x4+9x12 so what we can do is to again find the lowest term which is x2 once again so 15x20+6x8+30x18
+21x2+54x16+18x4+9x12=x2(15x18+6x6+30x16+21+54x14+18x2+9x10) now find the lowest coefficient which is 6 lets see if all is the factor of 6 x2(15x18+6x6+30x16+21+54x14+18x2
+9x10) sems like 15 21 and 9 is not the factor of 6 so we 6/2 3 much better now we can move 3 on left side we get x2(15x18+6x6+30x16+21+54x14+18x2+9x10)=3x2(5x18+2x6
+10x16+7+18x14+6x2+3x10) lets arrange it from from highest degree to lowest degree we get 3x2(5x18+2x6+10x16+7+18x14+6x2+3x10)=3x2(5x18+10x16+18x14+3x10+2x6+6x2+7)
now i want you to try the rest of the exercises on your own and see how far you get
62
Multiple Choice
51. 8h2+4h
4h2(2h2+1)
4h(2h2+1)
4h(2h+1)
4h2(2h+1)
63
Multiple Choice
52. 49w4+98w3+35w2
49(w2+2w+5)
7(7w2+14w+5)
49w2(w2+2w+5)
7w2(7w2+14w+5)
64
Multiple Choice
CHALLANGE 53. 4b1,000+36b895+96b732+100b595+732b420+896b267+1,000b101
4b101(b899+9b794+24b631+25b494+183b319
+224b166+250)
4b1,000(b899+9b794+24b631+25b494+183b319
+224b166+250)
4b100(b899+9b794+24b631+25b494+183b319
+224b166+250)
4b139(b899+9b794+24b631+25b494+183b319
+224b166+250)
65
Multiple Choice
CHALLANGE 54. 54*3√o5+81*√o3+27*7√o2
27*7√o2(2*21√o20+3*14√o11)
27*7√o2(2*21√o27+3*14√o16)
27*7√o2(2*21√o29+3*14√o17)
27*7√o2(2*21√o29+3*14√o17+1)
66
Multiple Choice
55. 70a30+80x25+90x21+40x17+60x13+100x10
10a10(7a2+8√a3+9*10√a11+4*10√a7+6*10√a3
+10)
10a10(7a3+8√a5+9*10√a21+4*10√a17
+6*10√a13
+10a)
10a10(7a20+8a15+9a11+4a7+6a3+10)
10a10(7a20+8a15+9a11+4a7+6a3+1)
67
Quadratics Alg1 Sem2, College Alg Sem1 Pt.12
lets i got d2+5d+6=0 and we want to find the quadratic formula well for ax2+bx+c=0 we use x=-(b±√(b2-4ac))/2a so lets plug those values in d2+5d+6=0 => 1*d2+5d+6=0 a=1, b=5, c=6 now lets plug that into formula x=-(b±√(b2-4ac))/2a=-(5±√(52-4*1*6))/(2*1)=-(5±√(25-24))/2=-(5±√1)/2=-(5±1)/2 so now lets separate x=-(5+1)/2=-6/2=-3 and x=-(5-1)/2=-4/2=-2 for u=-(b+√(b2-4ac))/2a, and
v=-(b-√(b2-4ac))/2a lets say I want to factor it well we use the formula for ax2+bx+c
a(x-u)(x-v) if there is something that is not whole all we can do for example u is not whole all we get is a(x-u)(x-v)=(ax-au)(x-v) let's try that let u=-2, v=-3 we can plug those in (d-(-2))(d-(-3))=(d+2)(d+3) so, in conclusion, d2+5d+6=(d+2)(d+3) now I want you to try the rest of the problems on your own and see how far you get.
68
Multiple Choice
56. p2-49
p(p+14)
p(p+7)
(p+14)(p-14)
(p+7)(p-7)
69
Multiple Choice
57. 4c2-36c+72
(c-9)(c-2)
4(c-6)(c-3)
(c-6)(c-3)
5\4(c-9)(c-2)
70
Multiple Choice
58. 3h2+h-14
(3h-7)(h+2)
3(h-7)(h+2)
3(h+7)(h-2)
(3h+7)(h-2)
71
Multiple Choice
CHALLANGE 59. 10c500-29c250-21
(c125+√(7/2))2(c125+√(3/5))2
(c125+√(7/2))(c125-√(7/2))(c125+√(3/5))(c125-√(3/5))
(c125+√(7/2))2(c250+3/5)
(c125+√(7/2))(c125-√(7/2))(c250+3/5)
72
Multiple Choice
CHALLANGE 60. f1,000+2f500+1
(f500-1)2
(f250+1)4
(f250+1)2(f250-1)2
(f500+1)2
73
Quadratics Alg1 Sem2, College Alg Sem1 Pt.13
say i got a polynomial 48xy+24y+24x+12 and we want to factor such a polynomial so first is the factor the left side we get 48xy+24y+24x+12=24y(2x+1)+24x+12 now facotr the right side we get 24y(2x+1)+24x+12=24y(2x+1)+12(2x+1) seems promising now we can construct factors we get 24y(2x+1)+12(2x+1)=(24y+12)(2x+1) continiue factoring we get (24y+12)(2x+1)=12(2y+1)(2x+1) now lets try the another one 30x3+35x2+12x+14 again to factor this polynomial we factor the left hand side first we get 30x3+35x2+12x+14=5x2(6x+7)+12x+14 now factor the right side 5x2(6x+7)+12x+14
=5x2(6x+7)+2(6x+7) now construct factors we get 5x2(6x+7)+2(6x+7)=(5x2+2)(6x+7) lets try last one x6+2x4+x2 first factor out the lowest term which is x2 we get x6+2x4+x2=x2(x4+2x2+1) seems promising we can substitute with u so let u=x2 in we get x2(x4+2x2+1)=u(u2+2u+1)=u(u+1)2 bring back the u=x2 we get u(u+1)2=x2(x2+1)2 so i want you to try the rest of the excerises on your own and see how far you get note you do not have to use u sub on outer shell if you dont have to.
74
Multiple Choice
61. x15+5x10+10x5+50
(x10+10)(x5+5)
(x2+5)(x+10)
(x10+5)(x5+10)
(x2+10)(x+5)
75
Multiple Choice
CHALLANGE 62. 12*56√h103+6*40√h61+18*8√h9+24*84√h95+12*60√h49+36*7√h5+36*12√h5+18*5√h2+54
(6*7√h5+3*5√h2+27)(8√h9+2*12√h5+2)
(6*7√h5+3*5√h2+54)(8√h9+2*12√h5+1)
(12*7√h5+6*5√h2+18)(8√h9+2*12√h5+3)
(6*7√h5+3*5√h2+9)(8√h9+2*12√h5+6)
76
Multiple Choice
63. s7+2s5+s3
(s7+s5)(s3+1)
(s6+s4)(s+1)
(s6+2s4)(s+1)
(s5+s3)(s2+1)
77
Multiple Choice
64. t15+2t10+t5
(t10+1)(t5+1)
(t10+t5)(t5+1)
(t10+t7)(t5+1)
(t10+t5)(t3+1)
78
Multiple Choice
65. w25+w22+w15+w12
(w25+w15)(w5+w2)
(w20+w10)(w5+w2)
(w20+w10)(w5+w3)
(w25+w15)(w5+w3)
79
Quadratics Alg1 Sem2, College Alg Sem1 Pt.14
say i got a trinomial f(x)=4x3+6x2-2x and we want to find the all values btwn x=-3 and x=3 lets do this starting with -3 so f(-3)=4(-3)3+6(-3)2-2(-3)=4(-27)+6(9)+6
=-108+54+6=-48 so f(-3)=-48 try f(-2)=4(-2)3+6(-2)2-2(-2)=4(-8)+6(4)+4=-32+24+4=-4 so f(-2)=-4, try f(-1)=4(-1)3+6(-1)2-2(-1)=4(-1)+6(1)+2=-4+6+2=4 so f(-1)=4 try f(0)=4(0)3+6(0)2-2(0) hers the lession about 0 when n>0 then 0n=0 , when n=0 then 0n=1, when n<0 0n=∞, so 4(0)3+6(0)2-2(0)=4(0)+6(0)-0=0+0-0=0 try f(1)=4(1)3+6(1)2-2(1)=4(1)+6(1)-2(1)=4+6-2=8 try f(2)=4(2)3+6(2)2-2(2)=4(8)+6(4)-4=32+24-4=52 try f(3)=4(3)3+6(3)2-2(3)=4(27)+6(9)-6=108+54-6=156 so we can complete the table in x,f(x) form -3,-48 -2,-4 -1,4 0,0 1,8 2,52 3,156 now i want you to try the rest of the excersizes on your own and see how far you get
80
Multiple Choice
66. t(s)=s2+2s+1 find the value of t(s) when s is btwn -5,5 in s,t form
s,t
-5,16
-4,9
-3,4
-2,1
-1,0
0,1
1,4
2,9
3,16
4,25
5,36
s,t
-5,-4
-4,-3
-3,-2
-2,-1
-1,0
0,1
1,2
2,3
3,4
4,5
5,6
s,t
-5,25
-4,16
-3,9
-2,4
-1,1
0,0
1,1
2,4
3,9
4,16
5,25
s,t
s,t
-5,-5
-4,-4
-3,-3
-2,-2
-1,-1
0,0
1,1
2,2
3,3
4,4
5,5
81
Multiple Choice
67. f(w)=5w2+25w+30 when w is -btwn 6,-2 in w,f form
w,f
-6,12
-5,6
-4,2
-3,0
-2,0
w,f
-6,42
-5,30
-4,20
-3,12
-2,6
w,f
-6,60
-5,30
-4,10
-3,0
-2,0
w,f
-6,210
-5,150
-4,100
-3,60
-2,30
82
Multiple Choice
68. d(t)=t4+4t3+12t2+24t+24 when t is btwn -3,3 in t,d form
t,d
-3,33
-2,-16
-1,9
0,0
1,24
2,168
3,393
t,d
-3,33
-2,16
-1,9
0,0
1,24
2,168
3,393
t,d
-3,33
-2,16
-1,9
0,24
1,65
2,168
3,393
t,d
-3,33
-2,-16
-1,9
0,24
1,65
2,168
3,393
83
Multiple Choice
69. t(y)=y5+5y+9 when y is btwn -2,2 in y,t form
y,t
-2,-33
-1,3
0,9
1,15
2,51
y,t
-2,33
-1,3
0,9
1,15
2,51
y,t
-2,32
-1,3
0,9
1,15
2,51
y,t
-2,-32
-1,3
0,9
1,15
2,51
84
Multiple Choice
70. r(t)=t2-4 when t is btwn -2,2 in t,r form
-2,-4
-1,-3
0,0
1,3
2,4
-2,-4
-1,-3
0,0
1,-3
2,-4
-2,0
-1,3
0,4
1,3
2,0
-2,0
-1,-3
0,-4
1,-3
2,0
85
say i got an equation 5x2+2x+1 and we want to find the axis of symmetry where
x=-b/(2a) from ax2+bx+c so lets use that formula x=-2/(2*5)=-2/10=-1/5 lets try another one 4x2+8x+24 lets use x=-b/(2a) again we get x=-8/(2*4)=-8/8=-1 lets try another one 6x2+24x+21 lets use x=-b/(2a) again we get x=-24/(2*6)=-24/12=-2 lets try another one 3x2+24x+48 lets use x=-b/(2a) again we get x=-24/(2*3)=-24/6=-4 lets try another one 7x2+63x+108 lets use x=-b/(2a)=-63/(2*7)=-63/14=-9/2 lets try another one
Quadratics Alg1 Sem2, College Alg Sem1 Pt.15
86
Multiple Choice
71. 6p2+5p+8 find axis of symmetry
-5/6
-5/12
-5/24
-5/48
87
Multiple Choice
72. 5j2+5j+5 find axis of symmetry
1
1/2
-1/2
-1
88
Multiple Choice
73. 2k2+7k+6 find axis of symmetry
7/2
-7/4
7/8
-7/16
89
Multiple Choice
74. m2-5m+4 find axis of symmetry
5/2
-5/2
5
-5
90
Multiple Choice
75. 6k2+6k+6 find axis of symmetry
1/2
1
-1
-1/2
91
Quadratics Alg1 Sem2, College Alg Sem1 Pt.16
say i got an equation 5x2+2x+1 and i want to convert that into into vertex form from ax2+bx+c to a(x-h)2+k well lets use a b c and see if we figure it out so first tking first is to seperate c into n+k where c=n+k we get ax2+bx+c=ax2+bx+n+k then factor a b and n by a we get ax2+bx+n+k=a(x2+bx/a+n/a)+k lets solve for h using vertex formula a(x-h)2+k first expand the equation we get a(x-h)2+k=a(x-h)(x-h)+k=a(x2-2xh+h2)+k now set that equal to a(x2+bx/a+n/a)+k we get a(x2-2xh+h2)+k=a(x2+bx/a+n/a)+k we can cancel the terms as highlighed here a(x2-2xh+h2)+k=a(x2+bx/a+n/a)+k => -2xh+h2=bx/a+n/a we can group these in 1st term we get -2xh=bx/a and 0th term we get h2=n/a lets try solving for h tht has only a, b, and c, on 0th term h2=n/a h=√(n/a) oh no theres an n how we gonna solve it any how lets try 1st term -2xh=bx/a solve for h we get h=-b/(2a) thats good now we can solve for n where n/a=h2 plug h=-b/(2a) in we get n/a=(-b/(2a))2=b2/(4a2) then solve for n we get n=b2/(4a) plug that into c=n+k we get c=b2/(4a)+k now solve for k we get from c=b2/(4a)+k to k=c-b2/(4a) now we got h=-b/(2a) and k=c-b2/(4a) we can plug them into vertex formula a(x-h)2+k=a(x-(-b/(2a)))2+c-b2/(4a)
=a(x+b/(2a))2+c-b2/(4a) now we got a new formula a(x+b/(2a))2+c-b2/(4a) now we can just plug them in we always need to remember and test this formula if it works or not lets plug 5x2+2x+1 into vertex formula we have a=5, b=2, c=1 since it is ax2+bx+c lets use the vertex formula to plug the values in a(x+b/(2a))2+c-b2/(4a)
=5(x+2/(2*5))2+1-22/(4*5)=5(x+1/5)2+1-4/(4*5)=5(x+1/5)2+1-1/5=5(x+1/5)2+4/5 take any trinomial that has a highest degree of 2 and see if it works and it actually works make sure to double check as i encourage you to do so try the excersizes on your own and see how far you get good luck.
92
Multiple Choice
76. find the vertex form of 7c2+14c+7
7(c+1)2
(c+1)2
7(c+1)2+7
(c+1)2+1
93
Multiple Choice
77. find the vertex form of 4t2+56t+24
4(t+7)2-168
4(t+7)2-172
4(t+7)2-196
4(t+7)2-200
94
Multiple Choice
78. find the vertex form of 2h2+3h+4
2(h-3/4)2+23/8
2(h-3/2)2+23/2
2(h+3/2)2+23/2
2(h+3/4)2+23/8
95
Multiple Choice
CHALLANGE 79. find the vertex form of 9o4/5-4o2/3+9/8
9(o2-10/27)2/5+569/648
9(o2+10/27)2/5+569/648
9(o-10/27)2/5+569/648
9(o+10/27)2/5+569/648
96
Multiple Choice
80. find the vertex form of 6d2/5+4d/3+7/8
6(d+5/9)2/5+109/216
6(d+9/5)2/5+178/216
6(d+5/9)2/5+178/216
6(d+9/5)2/5+109/216
97
Quadratics Alg1 Sem2, College Alg Sem1 Pt.17
say i got the vertex equation 5(x+3)2+10 and we want to find the minimum value of a function for to do that is to use the axis of symmetry which is x=-b/(2a) we can use 2 vertex's and set them equal we get a(x-h)2+k=a(x+b/(2a))2+c-b2/(4a) we know h=-b/(2a) we can plug the values in a=5 -h=3 k=10 right now -h is what we need so lets solve for h we get h=-3 lets plug h into x we get 5(x+3)2+10=5(-3+3)2+10=5(0)2+10=10 we get our minimum value or another way to do that is to let x=h a(x-h)2+k=a(h-h)2+k=a(0)2+k=k this is how you manipulate minimum value of y axis or other words range since the parabola is continious in y axis above k we get k<y<∞ when a>0, if a=0 then y=k, if a<0 then -∞<y<k for all conditions x has all numbers which means -∞<x<∞ you may not see it but it continius on and on and on as you keep going it doesnt stop which means any parabolas is always continious if you have a standard quadratic form use this k=c-b2/a do not use c only use the k formula good luck
98
Multiple Choice
81. find the domain of y=7x2+10x+5
-∞<x<∞
7<x<10
5<x<10
x>∞
99
Multiple Choice
82. true or false values in any quadratic and linear equations in domain have al solutions within y=f(x)
true
false
100
Multiple Choice
83. what is the range of ax2+bx+c
if a>0 then
y>c-b^2/(4a)
else if a=0 then
y=c-b^2/(4a)
else if a<0 then
y<c-b^2/(4a)
if a>0 then
y=c-b^2/(4a)
else if a=0 then
y>c-b^2/(4a)
else if a<0 then
y<c-b^2/(4a)
if a>0 then
y<c-b^2/(4a)
else if a=0 then
y>c-b^2/(4a)
else if a<0 then
y=c-b^2/(4a)
if a>0 then
y0c-b^2/(4a)
else if a=0 then
y<c-b^2/(4a)
else if a<0 then
y>c-b^2/(4a)
101
Multiple Choice
84. what is the range of a(x-h)2+k
if a>0 then
y<k
else if a=0 then
y>k
else if a<0 then
y=k
if a>0 then
y=k
else if a=0 then
y<k
else if a<0 then
y>k
if a>0 then
y=k
else if a=0 then
y>k
else if a<0 then
y<k
if a>0 then
y>k
else if a=0 then
y=k
else if a<0 then
y<k
102
Multiple Choice
85. find the range y=7x2+10x+5
y<10/7
y>10/7
y<25/7
y>25/7
103
Quadratics Alg1 Sem2, College Alg Sem1 Pt.18
if i have a equation 6(x-7)2+42 and i want to convert it into a standard quadratic form lets create the formula for it so let a(x-h)2+k=ax2+bx+c lets solve for the left hand side a(x-h)2+k=ax2+bx+c => a(x-h)(x-h)+k=ax2+bx+c =>
a(x2-2xh+h2)+k=ax2+bx+c => ax2-2xah+ah2+k=ax2+bx+c lets use
a(x-h)2+k=ax2-2xah+ah2+k to convert the vertex into standard quadratic form let a=6,h=7, k=42 from 6(x-7)2+42 for a(x-h)2+k for our current function so
ax2-2xah+ah2+k=6x2-2x*6*7+6*72+42=6x2-84x+294+42=6x2-84x+336 lets try another one 5(x-2)2-15 let 5(x-2)2-15=a(x-h)2+k so a=5 h=2, and k=-15 now use a formula
ax2-2xah+ah2+k=5x2-2x*5*2+5*22-15=5x2-20x+5*4-15=5x2-20x+20-15=5x2-20x+5 lets try the last one 5(x-5/7)2/2+7/8 set 5(x-5/7)2/2+7/8=a(x-h)2+k so a=5/2, h=5/7, and k=7/8 lets use ax2-2xah+ah2+k lets plug 5(x-5/7)2/2+7/8=a(x-h)2+k them in we get a=5/2, h=5/7, and k=7/8 lets plug them in ax2-2xah+ah2+k=5x2/2-2x5/2*5/7+5/2*(5/7)2
=5x2/2-25/7x+125/98 now i want you to try the rest of the excerises on your own.
104
Multiple Choice
86. convert 7(h-7)2+7 into standard quadratic form
7h2+98h+7
7h2-98h+7
7h2+98h+350
7h2-98h+350
105
Multiple Choice
87. convert 6(d-5)2+89 into standard quadratic form
6d2-60d+240
6d2-60d+239
6d2+60d+239
6d2+60d+240
106
Multiple Choice
88. convert 8(b-4)2+57 into standard quadratic form
8b2+64b+185
8b2-64b+185
8b2-32b+185
8b2+32b+185
107
Multiple Choice
89. convert 6(s-2)2-20 into standard quadratic form
6s2+24s+4
6s2-24s-4
6s2-24s+4
6s2+24s-4
108
Multiple Choice
CHALLANGE 90. convert -2(d5+5)2-78 into standard quadratic form
-2d10-20d5-128
-2d10+20d5-128
-2d10+20d5+128
-2d10-20d5+128
109
say i got a equation f(g)=6(g+7)2-100 and i want to transform this equation to h(g) which is h(g)=f(g-2) so what we can do is to use the same interpretation we get from f(g)=6(g+7)2-100 to h(g)=f(g-2)=6((g-2)+7)2-100=6(g+5)2-100 now lets try another one f(n)=8(n-2)2+32 and we want to transform this graph into h(n) which is h(n)=f(n-3) keep using the same interpretation we get f(n)=8(n-2)2+32 to
h(n)=f(n-3)=8((n-3)-2)2+32=8(n-5)2+32 lets try another one this time its standard quadratic form f(j)=4j2+8j+6 first is to convert this standard quadratic form into vertex quadratic form using this formula a(x+b/(2a))2+c-b2/(4a) lets plug the values in a=4, b=8, c=6 since were using j as our variable a(j+b/(2a))2+c-b2/(4a)= 4(j+8/(2*4))2+6-82/(4*4)=4(j+8/(2*4))2+6-82/(4*4)=4(j+8/8)2+6-64/16=
4(j+1)2+6-4=4(j+1)2+2 now i want you to try the rest of the excersizes on your own and see how far you get
Quadratics Alg1 Sem2, College Alg Sem1 Pt.19
110
Multiple Choice
91. if f(n)=5n3+35n+7, and h(n)=f(n-5) whats h(n)
5n2-410n-793
5n2+75n2+410n-793
5n2+410n-793
5n2-75n2+410n-793
111
Multiple Choice
92. if m(s)=s2-7s+3, and h(s)=m(s-5)+7s+5 whats h(s)
ms+5m+7s+5
ms-5m+7s+5
s2-17s+63
s2+17s+63
112
Multiple Choice
CHALLANGE 93. f(s)=s6+6s+6 h(s)=f(s+5)+s2 whats h(s)
s6+30s5+375s4+2500s3+9376s2+18750s
+15625
s6+32s5+379s4+2503s3+9376s2+18754s
+15628
s6+30s5+375s4+2500s3+9375s2+18750s
+15625
s6+30s5+375s4+2500s3+9376s2+18750s
+15625
113
Multiple Choice
94. h(d)=d2-5d+6 and f(d)=h(d+7) whats f(d)
d2+9d+20
d2-5d+13
d2-5d+6
d2+9d+6
114
Multiple Choice
95. s(q)=q2+2q+1, c(q)=s2(q)+5s(q)+7 find c(q)
q4+4q3+11q2+14q+13
q4+4q3+6q2+4q+1
q4+4q3+11q2+14q+6
q4+4q3+6q2+4q+6
115
Quadratics Alg1 Sem2, College Alg Sem1 Pt.20
say i got a vertex (0,-4) and a pt (4,0) and we want to find a function so first thing first is to make a function its ok to use a as a factor to a parabola so we will make one for vertex pt (h,k) we can rewrite a function as a(x-h)2+k since we got (0,-4) we get h=0 k=-4 so lets plug the values in we get a(x-h)2+k=a(x-0)2-4=ax2-4 since when x=4 y=0 let y=ax2-4 like you did to all functions so 0=a42-4 => 0=16a-4 4=16a a=1/4 lets plug a in we get y=ax2-4=x2/4-4 lets try a last one i got a vertex (2,-5) and a pt (10,-1) and we want to find a function so first is to make a function use a to solve any points on vertexes let h=2, and k=-5 right from the vertex point a(x-h)2+k
=a(x-2)2-5 now we have to solve for a using a pt that is not a vertex like we did so x=10, y=-1 so let y=a(x-2)2-5 -1=a(10-2)2-5 4=a(8)2 4=64a a=1/16 lets plug a in we get a(x-2)2-5=(x-2)2/16-5 now i want you yo try the rest of the excerises on your own and see how far you get.
116
Multiple Choice
96. we got a vertex (-7,0), and a pt (-5,-4) what is the function that fits with 2 points
-(x+5)2-4
-(x+7)2
(x+7)2
(x+5)2-4
117
Multiple Choice
97. we got a vertex (8,-9) and a pt (10,1) what is the function that fits with 2 points
5(x-8)2/2-9
(x-8)2-9
-(x-8)2-9
-5(x-8)2/2-9
118
Multiple Choice
98. we got a vertex (5,-20) and a pt (3,0) what is the function that fits with 2 points
5(x-5)2-20
4(x+5)2-20
20(x-5)2-20
10(x+5)2-20
119
Multiple Choice
99. we got a vertex (3/2,7/8) and a pt (1/2,2/8) what is the function that fits with 2 points
7/8-5(x-3/2)2/8
5(x-3/2)2/8+7/8
5(x+3/2)2/8+7/8
7/8-5(x+3/2)2/8
120
Multiple Choice
CHALLANGE 100. we got a vertex (4/7,-5/8) and a pt (0,0) what is the function that fits with 2 points a=245/128
49(x+4/7)2/8-5/8
49(x-4/7)2/8-5/8
245(x+4/7)2/128-5/8
245(x-4/7)2/128-5/8
121
Quadratics Alg1 Sem2, College Alg Sem1 Pt.21
say i got an equation 5x2-20x+c and we want to find the value of c that makes it perfect square well we have to use ax2+bx+c as our example let c be a perfect square a(x2+bx/a+c/a) lets use u and v factors to solve a ploblem a(u+v)2
=a(x2+bx/a+c/a) expand u and v a(u2+2uv+v2)=a(x2+bx/a+c/a) solve for u and x we get a(u2+2uv+v2)=a(x2+bx/a+c/a) => u2+2uv+v2=x2+bx/a+c/a lets use row by row method u2=x2 2uv=bx/a v2=c/a lets solve for u on the left doing row by row u2=x2 u=x then let's do the second one 2uv=bx/a subsitive u=x in 2xv=bx/a now solve for v 2v=b/a v=b/(2a) let's do the third one v2=c/a subsitute v=b/(2a) in (b/(2a))2=c/a => b2/(4a2)=c/a solve for c b2/(4a)=c now our perfect square is b2/(4a) our new formula 5x2-20x+c lets plug s c in c=b2/(4a)=(-20)2/(4*5)
=400/20=20 plug that in that squaric trinomial we get 5x2-20x+c=5x2-20x+20 now i want you to try the rest of the excerises on your own and see how far you get.
122
Multiple Choice
101. 7a2/2+35a/2+c whats the value of c to complete the square
175/4
175/8
175/16
175/32
123
Multiple Choice
102. (24n2/7+192n/7+c whats the value of c to complete the square
256/7
328/7
384/7
400/7
124
Multiple Choice
103. 25x2/7-20x/21+c whats the value of c to complete the square
20/63
10/63
32/63
26/63
125
Multiple Choice
104. 5n2/12+10n/27+c whats the value of c to complete the square
20/251
20/217
20/223
20/243
126
Multiple Choice
105. 8o2/9-24o/5+c whats the value of c to complete the square
217/57
823/45
617/68
526/75
127
Quadratics Alg1 Sem2, College Alg Sem1 Pt.22
say i got points (6,7),(7,0), and (9,0) with the equation a(x-u)(x-v) well 2 solutions are clear enough when x=u a(x-u)(x-v)=0 and when x=v a(x-u)(x-v)=0 so (u,0) and (v,0) is defined so for (7,0), and (9,0) u=7, and v=9 so we can fill out the infoirmation we got a(x-u)(x-v)=0 => a(x-7)(x-9)=0 since y=7 then x=6 we can plug those values in as y=a(x-u)(x-v) let 7=a(6-7)(6-9) => 7=a(-1)(-3) => 7=3a a=7/3 lets plug a in we get a(x-7)(x-9)=7(x-7)(x-9)/3 lets try last one i got points (1,0)(3,0)(2,-1) again use the same interpratation a(x-u)(x-v)=0, then (u,0), and (v,0) is defined plug in values we get u=1, v=3 plug them into the function we get a(x-u)(x-v)=0, a(x-1)(x-3)=0 since y=-1, when x=2 we can plug in those values in as y=a(x-u)(x-v) let -1=a(2-1)(2-3)
=> -1=a(-1) a=1 plug it in we get a(x-1)(x-3)=(x-1)(x-3) now i want you to try the rest of the excerises on your own and see how far you get good luck
128
Multiple Choice
106. a parabola hits points (5/2,-1/4),(3,0), and (2,0)
(x-5/2)(x-2)/2
(x-5/2)(x-2)
(x-3)(x-2)
1(x-3)(x-2)/2
129
Multiple Choice
107. a parabola hits points (6,-2),(8,0), and (4,0)
(x-4)(x-8)/2
(x-8)(x-6)(x-4)/2
(x-4)(x-8)
(x-8)(x-6)(x-4)
130
Multiple Choice
108. a parabola hits points (8,-1/4),(7,0), and (9,0)
(x-7)(x-9)
(x-7)(x-8)(x-9)/4
(x-7)(x-8)(x-9)
(x-7)(x-9)/4
131
Multiple Choice
109. a parabola hits points (4/7,-2),(0,0), and (8/7,0)
49x(x-8/7)/16
49x(x-8/7)/8
49x(x-4/7)/8
49x(x-4/7)/16
132
Multiple Choice
110. a parabola hits points (4/5,-1/20),(3/5,0), and (1,0)
-4(x-3/5)(x-1)/5
(x-3/5)(x-1)
5(x-3/5)(x-1)/4
4(x-3/5)(x-1)/5
133
say i got the standard quadratic form 5x2+2x+10 and to find the 0 within what x value we need we'll just create a formula out of ax2+bx+c lets solve for x ax2+bx+c=0 let c=n+k we know k=c-b2/(4a) so c=n+c-b2/(4a) solve for n n=b2/(4a) we get c=n+k=b2/(4a)+c-b2/(4a) i know its unfactored but bear with me as we go along so ax2+bx+c=ax2+bx+b2/(4a)+c-b2/(4a)=a(x2+bx/a+b2/(4a2))+c-b2/(4a) lets use the vertex formula to solve a ploblem a(x-h)2+k=a(x2+bx/a+b2/(4a2))+c-b2/(4a)=> a(x2-2xh+h2)+k=a(x2+bx/a+b2/(4a2))+c-b2/(4a) use k=c-b2/(4a) if you havent remember it i encourage you to rewind to find the solution lets continiue a(x2-2xh+h2)+c-b2/(4a)=a(x2+bx/a+b2/(4a2))+c-b2/(4a) cancel stuff accept x2 we get a(x2-2xh+h2)+c-b2/(4a)
=a(x2+bx/a+b2/(4a2))+c-b2/(4a) => x2-2xh+h2=x2+bx/a+b2/(4a2) we know h=-b/(2a) we can plug those values in on the left we get x2-2xh+h2=x2-2x(-b/(2a))+(-b/(2a))2=x2+bx/a+b2/(4a2))
now check x2+bx/a+b2/(4a2)=x2+bx/a+b2/(4a2) seems perfect to factor lets factor this squaric trinomial x2+bx/a+b2/(4a2)=(x+b/(2a))2 now we can set variable in we get a(x2+bx/a+b2/(4a2))+c-b2/(4a)=a(x+b/(2a))2+c-b2/(4a) now solve for 0 a(x+b/(2a))2+c-b2/(4a)=0 => a(x+b/(2a))2=b2/(4a)-c => (x+b/(2a))2=b2/(4a2)-c/a => x+b/(2a)=±√(b2/(4a2)-c/a) set a into perfect square 4a2 on c we get x+b/(2a)=±√(b2/(4a2)-c/a=x+b/(2a)=±√(b2/(4a2)-4ac/(4a2))=x=-b/(2a)±√((b2-4ac)/(4a2))=
-b/(2a)±√(b2-4ac)/(2a)=(-b±√(b2-4ac))/(2a) now with our quadratic formula we solved for we can finally plug the values in so for 5x2+2x+10=0 set a=5, b=2, c=10 then x=(-b±√(b2-4ac))/(2a)=(-2±√(22-4*5*10))/(2*5)
=(-2±√(4-200))/10=(-2±√(-196))/10 since the root part is <0 there is no solution but good luck on the next page.
Quadratics Alg1 Sem2, College Alg Sem1 Pt.23
134
Multiple Choice
111. find n if 6n2+4n+1=0
n1=-(2+√2)/3, n2=-(2-√2)/3
n1=-(2+√2)/12, n2=-(2-√2)/12
n1=-(2+√2)/6, n2=-(2-√2)/6
NO SOLUTION
135
Multiple Choice
112. find h if 2j2-7j+8=0
j1=15/2, j2=-1/2
j1=(7+√13)/4, j2=(7-√13)/4
j1=(7+√13)/2, j1=(7-√13)/2
NO SOLUTION
136
Multiple Choice
113. find c if c2-5c+6=0
c1=6, c2=1
c1=3, c2=2
c1=6, c2=4
NO SOLUTION
137
Multiple Choice
114. find g if 7g2/3+49g/36-35/18=0
g1=14/9, g2=-35/12
g1=2/3, g2=-5/4
g1=-14/9, g2=35/12
NO SOLUTION
138
Multiple Choice
CHALLANGE 115. find d if 6d2/13-34d/21+14/123=0
d1=200/127+√(22,598,692/7,231,577), d2=200/127-√(22,598,692/7,231,577)
d1=213/119+√(23,404,578/7,349,395), d2=213/119-√(23,404,578/7,349,395)
d1=221/126+√(23,776,261/7,194,608), d2=221/126-√(23,776,261/7,194,608)
NO SOLUTION
139
Quadratics Alg1 Sem2, College Alg Sem1 Pt.24
say i got an equation 3(x-5)2-7 and i want to find when our equation going to be 0 within x so we setup our vertex equation a(x-h)2+k and set that equal to 0 a(x-h)2+k=0 now solve for x a(x-h)2+k=0 => a(x-h)2=-k => (x-h)2=-k/a => x-h=±√(-k/a) x=h±√(-k/a) now we solve for x now plug the values in we get a=3 h=5, and k=-7 now plug them into formula x=5±√(7/3) now we can seperate x1=5+√(7/3), and x2=5-√(7/3) seems straight forward lets try another another one 7(x-3)2-6 lets use the formula to find the 0 x=h±√(-k/a)=3±√(6/7) lets seperate them x1=3+√(6/7),
x2=3-√(6/7) lets try a another one 6(x+4)2+44 lets use the formula x=h±√(-k/a) so a=6 ,h=-4, and k=44 x=-4±√(-44/6)=-4±√(-22/3) oh no this seems like there is no solution to the equation so answer is no solution since we have negative root remember if negative root do not count as an solution so i want you to try the rest of the ploblem on your own and see how far you get.
140
Multiple Choice
116. find w if 5(w-2)2+3=0
w1=2+√3, w2=2-√3
w1=2+√(3/5), w=2-√(3/5)
w=√5-2, w=-2-√5
NO SOLUTION
141
Multiple Choice
117. find m if 7(m-3/2)2/4-8=0
m1=3/2+32√(1/7), m2=3/2-32√(1/7)
m1=3/2+4√(2/7), m2=3/2-4√(2/7)
m1=3/2+16√(2/7), m2=3/2-16√(2/7)
NO SOLUTION
142
Multiple Choice
118. find j if 2(j-5/2)2/3-32/67=0
j1=√(67/48)-5/2, j2=-5/2-√(67/48)
j1=√(48/67)-5/2, j2=-5/2-√(48/67)
j1=5/2+√(48/67), j2=5/2-√(48/67)
NO SOLUTION
143
Multiple Choice
119. find m if 6/7-4(m-8/5)2/5=0
m1=8/5+√(14/15), m2=8/5-√(14/15)
m1=-8/5+√(15/14), m2=-8/5-√(15/14)
m1=8/5+√(15/14), m2=8/5-√(15/14)
NO SOLUTION
144
Multiple Choice
120. find h if 7/9-6(h-5/7)2/5=0
h1=5/7+√(35/54), h2=5/7-√(35/54)
h1=5/7+√(54/35), h2=5/7-√(54/35)
h1=-5/7+√(54/35), h2=-5/7-√(54/35)
NO SOLUTION
145
Quadratics Alg1 Sem2, College Alg Sem1 Pt.25
lets say i got an equation 7x2+5x+8 and i want to find the discriminant of it but first lets explain how discriminant works well discriminant is the test if the root has a positve or negative value if its positive then it will return a real number if its negative it will return an imaginary root which is ALWAYS REMEMBER i=√-1 which cannot be an solution lets find the discriminant out of the quadratic formula x=(-b±√(b2-4ac))/2a we can see the root part we can set that to d=b2-4ac so if d>0 then it has 2 solution when d=0 then it has 1 solution and when d<0 then it has no solution got it lets use it to solve the discriminant so we do have the equation 7x2+5x+8 we can plug them in we get a=7, b=5, and c=8 lets plug them in d=b2-4ac => d=52-4*7*8=25-224=-199 so this one has no solution lets try another one 8x2+8x-4 like always use discriminant d=b2-4ac=82-4*8*-4=64+128=192 seems like it has 2 solutions now i want you to try the rest of the excerises on your own and see how far you get
146
Multiple Choice
121. how many solutions when 6j2+35j=0
0
1
2
147
Multiple Choice
122. how many solutions when 6y2+21y+70=0
0
1
2
148
Multiple Choice
123. how many solutions when 5h2/3+20h/7+60/49
0
1
2
149
Multiple Choice
124. how many solutions when 3h2+38h+1,000=0
0
1
2
150
Multiple Choice
125. how many solutions when 5b2/7-32b/7+25/49=0
0
1
2
151
Quadratics Alg1 Sem2, College Alg Sem1 Pt.26
say i got an equation o2-7o+10 and we want to factor such an equation one way to do it is to use quadratic formula x=(-b±√(b2-4ac))/(2a) note also focus on the discriminant in bolded one any how o=(-(-7)±√((-7)2-4*1*10)/(2*1)=(7±√(49-40))/2
=(7±√(49-40))/2=(7±√(9))/2 note discriminant>0 since our discriminant=9 so there are 2 solution if you check the discriminant so we use (x-x1)(x-x2) lets continiue factoring (7±√(9))/2=(7±3)/2 then we setup the solution o1=(7+3)/2=10/2=5, o2=(7-3)/2=4/2=2 lets plug them in this time using o we get (o-5)(o-2) so in factored conclusion o2-7o+10=(o-5)(o-2) lets try he last one s2-8s+16 to factor this squaric trinomal as always use the quadratic formula also use the discriminant method for this one x=(-b±√(b2-4ac))/(2a) s=(-(-8)±√((-8)2-4*1*16))/(2*1)
=(8±√(64-64))/2=(8±√0)/2 note we have a discriminant=0 so there is one solution we rewrite as (x-x1)2 lets continue solving (8±√0)/2=8/2=4 so s1=4 so we get (s-4)2 so in factored conclusion s2-8s+16=(s-4)2 now i want you to try the excersies on your own and see how far you get
152
Multiple Choice
126. factor g2-15g+56
(g+7)(g+8)
(g+7)(g-8)
(g-7)(g+8)
(g-7)(g-8)
153
Multiple Choice
127. factor n2+3n-10
(n+5)(n-2)
(n-5)(n+2)
(n-5)(n-2)
(n+5)(n+2)
154
Multiple Choice
128. factor t2-9t/5+18/25
(t+6/5)(t-3/5)
(t-6/5)(t+3/5)
(t-6/5)(t-3/5)
(t+6/5)(t+3/5)
155
Multiple Choice
CHALLANGE 129. factor t2-27t/20+9/20
(t-5/4)(t-4/5)
(t+7/20)(t-13/20)
(t-3/4)(t-3/5)
(t+5/4)(t+4/5)
156
Multiple Choice
130. factor h2-16h+63
(h+49)(h-63)
(h-49)(h-63)
(h+7)(h-9)
(h-7)(h-9)
157
Quadratics Alg1 Sem2, College Alg Sem1 Pt.27
say i got an equation 5y2+10y+5 and i want to factor it so what we do is the use a quadratic formula which is x=(-b±√(b2-4ac))/(2a) lets use the same method y=(-10±√(102-4*5*5))/(2*5)=(-10±√(100-100))/(10)=(-10±√0)/(10)=-10/10=-1 since our discrimant=0 we will use (bx-x1)2 let y1=-1 a=5 since a is leading coefficient we get 5(y+1)2 so in factored inconclusion 5y2+10y+5=5(y+1)2 lets try another one 40h2-22h-8 to factor this squaric trinomial 40h2-22h-8 use the quadratic formula x=(-b±√(b2-4ac))/(2a) h=(-(-22)±√((-22)2-4*40*-8))/(2*40)
=(22±√(484+1,280))/80=(22±√1,764)/80 since our discriminant>0 we will use (x-x1)(x-x2) h=(22±√1,764)/80=(22±42)/80=(11±21)/40, h1=(11+21)/40=32/40=4/5, and h2=(11-21)/40=-10/40=-1/4 lets plug those values in we get (h-4/5)(h+1/4) since we got fractions we must seperate them we get (h-4/5)(h+1/4) => since leading coefficient a=40 we get 40(h-4/5)(h+1/4) remove all denominators we get 40(h-4/5)(h+1/4)=2(h-4)(h+1)
158
Multiple Choice
131. factor 3j2-48
(j-4)2
(j-4)(j+4)
3(j-4)2
3(j-4)(j+4)
159
Multiple Choice
132. factor 6o2/7+3o/7-20/21
(6o-5)(3o+4)/21
(6o-5)(3o+4)/18
6(7o-5)(7o+8)/343
(7o-5)(7o+8)/49
160
Multiple Choice
133. factor 7d2/20-427d/480+245/480
7(3d-5)(8d+7)/480
7(3d-5)(8d+7)/576
7(3d-5)(8d-7)/576
7(3d-5)(8d-7)/480
161
Multiple Choice
CHALLANGE 134. factor f2/4+35f/1440-5/6
(3f-320)(8f+9)/3,456
(f-320)(2f+9)/4
(9f-16)(8f+15)/288
(3f-4)(4f+3)/48
162
Multiple Choice
CHALLANGE 135. factor 24t10/7+4t5/7-160/7
4(2t5-5)(3t5+8)/7
4(14t5-5)(21t5+8)/49
4(2t5-35)(3t5+56)
24(2t5-5)(3t5+8)/7
163
Quadratics Alg1 Sem2, College Alg Sem1 Pt.28
x can be any variable say y, or z, whatever you choose its your option
1 -> x0 0th degree horizontic x-12 -> -12th degree antiduodecic
x -> x-1 -1st degree, antiliniaric x-13 -> -13th degree antitredecic
x-2 -> -2nd degree, antisquaric x-14 -> -14th degree antiquadecic
x-3 -> -3rd degree, anticubic x-15 -> -15th degree antiquindecic
x-4 -> -4th degree, antiquartic x-16 -> -16th degree antisesdecic
x-5 -> -5th degree, antiquintic x-17 -> -17th degree antiseptidecic
x-6 -> -6th degree, antisestic x-18 -> -18th degree antioctodecic
x-7 -> -7th degree, antiseptic x-19 -> -19th degree antinovemdecic
x-8 -> -8th degree, antioctic x-20 -> -20th degree antivigintic
x-9 -> -9th degree, antinonic x-21 -> -21st degree, antiunvigintic
x-10 -> -10th degree, antidecic x-22 -> -22nd degree, antiduovigintic
x-11 -> -11th degree antiundecic x-23 -> -23rd degree, antitrevigintic
164
Multiple Choice
136. classify 5/x7+28/x9+34/x15-45/x20
antiseptic quadranomial
antivigintic quadranomial
antiseptic trinomial
antivigintic trinomial
165
Multiple Choice
137. classify 6/x10+11/x15-16/x20
antivigintic trinomial
antiseptic quadranomial
antidecic trinomial
antidecic quadranomial
166
Multiple Choice
138. classify the polynomial if there are 87 terms and highest degree is -7
antiseptic septinomial
antiseptic octuagintinomial
antiseptic septenoctuagintinomial
antiseptic octonomial
167
Multiple Choice
139. classify the polynomial if there are 56 terms and highest degree is -14
antiquadecic quntinomial
antiquadecic sesquinquagintinomial
antiquadecic quinquagintinomial
antiquadecic sesagintinomial
168
Multiple Choice
140. classify the polynomial if there are 20 terms and highest degree is -20
antivigintic vigintinomial
antivigintic decinomial
antidecic decinomial
antidecic vigintinomial
169
Quadratics Alg1 Sem2, College Alg Sem1 Pt.29
lets study more of these examples i know this is a different type of math
say we have xn and we want to express something right heres something to express we know we let n be a power base on x so we know when
n=0 its horizontic, n=-9 its andtionic,
n=-1 its antilinearic, n=-10 its antidecic, and so on but what if we deal with higher order
n=-2 its antisquaric, n=-20 its antivigintic, n=-90 its antinonagintic,
n=-3 its anticubic, n=-30 its antitrigintic, n=-100 its anticentic,
n=-4 its antiquartic, n=-40 its antiquadragintic, say i got power n=-47 and we want
n=-5 its antiquintic, n=-50 its antiquinquagintic, to classify the power it is on so our
n=-6 its antisestic, n=-60 its antisesagintic, tens is 4 which is antiquadragintic
n=-7 its antiseptic, n=-70 its antiseptuagintic, and ones is 7 which is antiseptic so
n=-8 its antioctic, n=-80 its antioctuagintic, putting them together we get antiseptenquadragintic anti means opposite if you use 2 then it is not opposite so i want you to try the rest of the excerises on your own and see how far you get
170
Multiple Choice
141. classify the polynomial if there are 72 terms and highest degree is -58
octoquinquagintic duoseptuagintinomial
duoquinquagintic septuagintinomial
antiduoquinquagintic septuagintinomial
antioctoquinquagintic duoseptuagintinomial
171
Multiple Choice
142. classify the polynomial if there are 46 terms and highest degree is -98
antioctononagintic sesaquadraintinomial
antinonagintic sesaquadraintinomial
antinovemnonagintic sesaquadraintinomial
antioctoctuagintic sesaquadraintinomial
172
Multiple Choice
143. classify the polynomial if there are 1 terms and highest degree is -74
antisesaintinomial monomial
antiquasesaintinomial monomial
antiquasesaintinomial trinomial
antisesaintinomial binomial
173
Multiple Choice
144. classify the polynomial if there are 99 terms and highest degree is -100
anticentic novemnonagintinomial
novemnonagintic
centinomial
novemnonagintic novemnonagintinomial
centic novemnonagintinomial
174
Multiple Choice
145. classify the polynomial if there are 100 terms and highest degree is -100
decic decinomial
antidecic decinomial
anticentic centinomial
centic centinomial
175
Multiple Choice
146. when x(u)=u2+2u+7 and y(u)=u2+5u+3 when will they equal to each other find the value of u
4/3
3/4
4
3
176
Multiple Choice
147. when f(t)=2t2+5t+7 and d(t)=t2+1 when will they be equal to each other find the value of t
t1=5, t2=6
t1=-2, t2=-3
t1=-5, t2=-6
t1=2, t2=3
177
Multiple Choice
CHALLANGE 148. when c(r)=r8+5r4+3 and s(r)=-3 when will they be equal to each other find the value of r
r1=-3 r2=-2
r1=√3 r2=√2 r3=-√3 r4=-√2
r1=3 r2=2
N/A
178
Multiple Choice
CHALLANGE 149. when a(s)=s10+7s5+23 and b(s)=2s10+s5+32 when will they be equal to each other find the value of s s10-6s5+9
s1=5√3 s2=5√2 s3=-5√3 s4=-5√2
s1=5√3 s2=-5√3
s1=5√3 s2=5√2
s1=5√3 s2=5√6 s3=-5√3 s4=-5√6
179
Multiple Choice
CHALLANGE 150. when b(r)=4/5√r+5/10√r+10 and c(r)=3/5√r+10/10√r+4
r1=59,049 r2=1,024
r1=1/59,049 r2=1/1,024
r1=1/243 r2=1/32
r1=243 r2=32
Quadratics Alg1 Sem2, College Alg Sem1 Pt.1
x can be any variable say y, or z, whatever you choose its your option
1 -> x0 0th degree horizontic x12 -> 12th degree duodecic
x -> x1 1st degree, liniaric x13 -> 13th degree tredecic
x2 -> 2nd degree, squaric x14 -> 14th degree quadecic
x3 -> 3rd degree, cubic x15 -> 15th degree quindecic
x4 -> 4th degree, quartic x16 -> 16th degree sesdecic
x5 -> 5th degree, quintic x17 -> 17th degree septidecic
x6 -> 6th degree, sestic x18 -> 18th degree octodecic
x7 -> 7th degree, septic x19 -> 19th degree novemdecic
x8 -> 8th degree, octic x20 -> 20th degree vigintic
x9 -> 9th degree, nonic x21 -> 21st degree, unvigintic
x10 -> 10th degree, decic x22 -> 22nd degree, duovigintic
x11 -> 11th degree undecic x23 -> 23rd degree, trevigintic
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