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WorksheetsQuiz 8
Total questions: 20
Worksheet time: 20mins
Name
Class
Date
1.
Solve Using the Quadratic Formula
x2 + 4x - 40 = -8
x2 + 4x - 40 = -8
a)
-10 & -4
b)
-4 & 10
c)
-8 & 4
d)
8 & -4
2.
Use the quadratic formula to solve 2x2 + 2x - 12?
a)
-2, 3
b)
2, 3
c)
2, -3
d)
-2, -3
3.
In the equation
y = x2 +5x +7, match each leading coefficient with its correct letter
y = x2 +5x +7, match each leading coefficient with its correct letter
a)
a=0, b=5, c=7
b)
a=1, b=5, c=7
c)
a=7, b=5, c=1
4.
Solve
2x2 + 7x - 15 = 0
2x2 + 7x - 15 = 0
a)
-1.5 or 5
b)
No Solution
c)
-5 or 1.5
d)
0.7 or 5
5.
Solve using the quadratic formula...
9x2 = 4 + 7x
9x2 = 4 + 7x
a)
x = 2 and x = 3
b)
x = -1 and x = .25
c)
x = 1 and x = -.45
d)
x = 1.16, and x = -.38
6.
How many solutions does the equation 4x2 + 4x + 1 = 0 have?
a)
0
b)
1
c)
2
d)
More than 2
7.
Identify the 'a' value: y = 16x2 -8x -24
a)
16
b)
8
c)
-8
d)
-24
8.
Identify the 'b' value: y = 16x2 -8x -24
a)
16
b)
-8
c)
8
d)
-24
9.
Identify the 'c' value: y = 16x2 -8x -24
a)
16
b)
-8
c)
24
d)
-24
10.
b2 would equal: y = 2x2 -x -3
a)
2
b)
-1
c)
1
d)
-3
11.
4ac would equal: y = 2x2 -x -3
a)
-12
b)
8
c)
-24
d)
-1
12.
b2 - 4ac would equal: y = 2x2 -x -3
a)
25
b)
-23
c)
-25
d)
0
13.
Determine the values of a, b, and c for the quadratic equation:
4x2 – 8x = 3
a)
a = 4, b = -8, c = 3
b)
a = 4, b =-8, c =-3
c)
a = 4, b = 8, c = 3
d)
a = 4, b = 8, c = -3
14.
Use the quadratic formula to solve 2x2 + 2x - 12.
a)
-2, 3
b)
2, 3
c)
2, -3
d)
-2, -3
15.
Solve 2x2 + 7x - 15 = 0
a)
-3/2 or 5
b)
No Solution
c)
-5 or 3/2
d)
0.7 or 5
16.
What should you do first in solving this equation?
x2 + 6x - 13 = 3
a)
Factor
b)
Write down: a = 1, b = 6, c = -13
c)
Subtract 3 from both sides.
d)
Add 3 to both sides.
17.
Solve Using the Quadratic Formula
x2 + 4x - 40 = -8
x2 + 4x - 40 = -8
a)
-10 & -4
b)
-4 & 10
c)
-8 & 4
d)
8 & -4
18.
Determine the values of
a, b, and c for
the quadratic equation:
4x2 – 8x = 3
a, b, and c for
the quadratic equation:
4x2 – 8x = 3
a)
a = 4, b = -8, c = 3
b)
a = 4, b =-8, c =-3
c)
a = 4, b = 8, c = 3
d)
a = 4, b = 8, c = -3
19.
Identify the 'b' value: y = 16x2 -8x -24
a)
16
b)
-8
c)
8
d)
-24
20.
Solve 8x2 - 6x + 1 = 0
a)
No Solution
b)
0 or 1
c)
-0.5 or -0.25
d)
0.25 or 0.5
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