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Quadratic equation

Total questions: 10

Worksheet time: 44mins

Name
Class
Date
1.
Convert x- 9x + 20 to factored form and solve.
a)
(x-10)(x+2); x = -2, 10
b)
(x+4)(x+5); x = -5, -4
c)
(x-4)(x-5); x = 4, 5
d)
Not factorable
2.
In the equation
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
3.

Use the quadratic formula to find the solutions for

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

4.
2x2-x -3=0
a)
x=-3/2  x=1
b)
x= 3/2 x= -1
c)
x= -3/2 x= -1
d)
x= 3/2 x= 1
5.
What are the roots of the function
f(x)= (x - 2)(x + 3)?
a)
x = - 2 or x = 3
b)
x = 2 or x = -3
c)
The are no real roots
d)
x = 2 or x = 3
6.
At what time would you reach 16 ft above the water if you jump of a cliff using the formula:    
h = -16t2 + 8t + 24?
a)
8
b)
1
c)
1/2
d)
1/4
7.
What is the vertex?
a)
(0, - 1)
b)
(0, 0.5)
c)
(-1, 0)
d)
(0.5, 0)
8.
Find the vertex.
y = 2x2 - 8x + 9
a)
(1,2)
b)
(2, 33)
c)
(2,1)
d)
(33, -2)
9.
Complete the Square
x2 + 6x + 20
a)
(x + 3x)2 + 11
b)
(x + 3)2 + 11
c)
(x + 6)2 + 11
d)
(x + 3)2 + 29
10.
Solve
16a2 - 9 = 0
a)
a = -3/43/4 
b)
a = -4/34/3 
c)
a = -9/169/16 
d)
a = -16/916/9