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WorksheetsSolutions of Quadratic Functions Using Algebra
Total questions: 9
Worksheet time: 51mins
Name
Class
Date
1.
The solutions of the quadratic equation
x2+2x-15=0 are
x2+2x-15=0 are
a)
x = 3 or x = 5
b)
x = 5 or x = -3
c)
x = -5 or x = 3
d)
x = -3 or x = -5
2.
The solutions of the quadratic equation
x2+12x+35=0 are
x2+12x+35=0 are
a)
x = -5 or x = -7
b)
x = 5 or x = 7
c)
x = -35 or x = -1
d)
x = -9 or x = -4
3.
What are the solutions to this equation?
(3x-2)(5x+1)=0
(3x-2)(5x+1)=0
a)
x=5/2,-1/3
b)
x=1/5,-2/3
c)
x=1/3,-5/2
d)
x=2/3,-1/5
4.
Solve for x. Round to the nearest hundredth if necessary.
x2 + 18 = 9x
x2 + 18 = 9x
a)
x = 3, 6
b)
x = -3, -6
c)
x = -3, 6
d)
x = -6, 3
5.
Solve for x. Round to the nearest hundredth if necessary.
x2 - 10x = -25
x2 - 10x = -25
a)
x = 5
b)
x = -5
c)
x = -5, 5
d)
x = 25
6.
Solve for x. Round to the nearest hundredth if necessary.
x2 + 11x + 5 = -5
x2 + 11x + 5 = -5
a)
x = -1, -10
b)
x = 1, 10
c)
x = 0, 11
d)
x = 0, -11
7.
Solve using the quadratic formula.
2x2 - 9x - 35 = 0
2x2 - 9x - 35 = 0
a)
x = 7/2, x = -6
b)
x = -5/2, x =5
c)
x = -3/7, x =6
d)
x = -5/2, x = 7
8.
Solve the equation:
5x2 - 35x + 60 = 0
5x2 - 35x + 60 = 0
a)
x = 3, -4
b)
x = -3, 4
c)
x = 3, 4
d)
x = -3, -4
9.
What should you do first in solving this equation?
x2 + 6x - 13 = 3
x2 + 6x - 13 = 3
a)
Get factored form
b)
Write down: a=1, b=6, c=-13
c)
Make it equal 0 by subtracting 3 on each side
d)
Type it all in a calculator.
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