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Quadratics Practice - Standard Form

Total questions: 15

Worksheet time: 19mins

Name
Class
Date
1.

What is the axis of symmetry for the following equation?

y = 4x2 - 8x + 9

a)

x = -8

b)

x = 1

c)

x = -1

d)

x = 2

2.

Find the vertex of

f(x) = -x2 - 4x + 12

a)

(-2, 16)

b)

(2, 0)

c)

(2, 4)

d)

(-2, 4)

3.

What is the y-intercept for the following equation?

y = 4x2 - 8x + 9

a)

(0, 1)

b)

(0, 9)

c)

(0, -1)

d)

(0, 2)

4.

What is the vertex for the following equation?

y = 4x2 - 8x + 9

a)

(4, -8)

b)

(0, 9)

c)

(-1, 21)

d)

(1, 5)

5.

Which formula allows you to find the x-value of the vertex from a standard form equation?

a)

 x=b2ax=-\frac{b}{2a}  

b)

 x=(p+q)2x=\frac{\left(p+q\right)}{2}  

c)

 x=b±b24ac2ax=\frac{-b\pm\sqrt{b^2-4ac}}{2a}  

d)

 x=hx=h  

6.

Find the axis of symmetry for the following equation.

 y=x210x+7y=-x^2-10x+7  


x = (a)  

7.

The axis of symmetry for a vertical parabola always matches...

a)

the y-intercept

b)

the y-value of the vertex

c)

the x-value of the vertex

d)

the x-intercepts

8.

Find the vertex, AOS, and y-intercept for the following equation.

 y=4x2+20x22y=-4x^2+20x-22  

Choose all below that apply.

a)

Vertex:  (52, 3)\left(\frac{5}{2},\ 3\right)  

b)

Vertex:  (52, 97)\left(-\frac{5}{2},\ -97\right)  

c)

AOS:  x = 52x\ =\ \frac{5}{2}  

d)

AOS:  x = 52x\ =\ -\frac{5}{2}  

e)

y-intercept:  (0, 3)\left(0,\ 3\right)  

9.

Which equation matches the graph?

a)

 y=2x2+8x5y=2x^2+8x-5  

b)

 y=2x28x5y=2x^2-8x-5  

c)

 y=2x2+8x5y=-2x^2+8x-5  

d)

 y=2x2+8x+5y=2x^2+8x+5  

10.

Which graph matches the equation below?

 y=3x26x2y=3x^2-6x-2  

a)
b)
c)
d)
11.

Find the y-value of the vertex for the equation below.

 y=12(x+5)(x1)y=-\frac{1}{2}\left(x+5\right)\left(x-1\right)  

Only enter the number (no variables).



(a)  

12.

Find the x-intercepts for the equation below.

 y=12(x+5)(x1)y=-\frac{1}{2}\left(x+5\right)\left(x-1\right)  

Choose all correct answers below.

a)

(-5, 0)

b)

(1, 0)

c)

(5, 0)

d)

(-1, 0)

e)

(-5, 1)

13.

Find the a, h, and k values for the graph.

a)

a = -2; h = -3; k = 4

b)

a = -2; h = 3; k = 4

c)

a = -2; h = 4; k = -3

d)

a = -2; h = 4; k = 3

14.

What is the vertex of the equation?

 x=12(y+3)21x=-\frac{1}{2}\left(y+3\right)^2-1  

a)

(-1, 3)

b)

(-1, -3)

c)

(3, -1)

d)

(-3, -1)

15.

How does the x-value of the vertex of a parabola relate to the x-intercepts?

a)

The x-value of the vertex is halfway between the x-intercepts.

b)

You can choose the x-value of the vertex and the x-intercepts.

c)

The x-value of the vertex is always closer to the smaller x-intercept.

d)

There is not a relationship between the x-value of the vertex and the x-intercepts.

e)

The x-value of the vertex is always closer to the larger x-intercept.