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WorksheetsQuadratic formula
Total questions: 12
Worksheet time: 50mins
Name
Class
Date
1.
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
2.
Identify the 'a' value:
y = 16x2 -8x -24
y = 16x2 -8x -24
a)
16
b)
8
c)
-8
d)
-24
3.
Identify the 'b' value:
y = 16x2 -8x -24
y = 16x2 -8x -24
a)
16
b)
-8
c)
8
d)
-24
4.
Identify the 'c' value:
y = 16x2 -8x -24
y = 16x2 -8x -24
a)
16
b)
-8
c)
24
d)
-24
5.
Solve
5n2 +10n - 5=0 using the quadratic formula.
5n2 +10n - 5=0 using the quadratic formula.
a)
A
b)
B
c)
C
d)
D
6.
Use the quadratic formula to find the solutions for
y = -x2 - 5x + 12
y = -x2 - 5x + 12
a)
-4.9 and -0.1
b)
-8.54 and 8.54
c)
-0.45 and 3.55
d)
-6.77 and 1.77
7.
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
8.
Solve :
m2 - 2m -15=0
m2 - 2m -15=0
a)
m=-2 or 8
b)
m=-5 or 3
c)
m=-3 or 5
d)
m = 5 or 3
9.
Factorizing 2x2 + 3x +1
a)
(2x+1)(x+1)
b)
(x+1)(x+2)
c)
(2x+2)(x+1)
d)
2(x+1)(x+1)
10.
Solve by factoring and using null factor law:
a2 + 2a - 24 = 0
a2 + 2a - 24 = 0
a)
a = -6, 4
b)
a = 6, -4
c)
a = 12, -2
d)
a = 8, -3
11.
Which method would you use to factor:
4x2 - 13x + 9
4x2 - 13x + 9
a)
product and sum
b)
quadratic formula
c)
Grouping
d)
no solutions
12.
Solve by factoring:
r2 - r -12
r2 - r -12
a)
-3, 4
b)
3, 4
c)
-4, -3
d)
-3
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