Chapter 12 Final Review

Find the vertex:

 $y=x^2-10x+12$  

• (0, 0)

• Not enough info

• (5, -13)

• (-13, 5)

Find the axis of symmetry of
 $y=3x^2-6x+4$  

•  $x=1$ 

•  $x=-6$  

•  $x=2$ 

•  $x=-1$  

What are the x-intercepts of the graph?

• (-3,0) and (3,0)

• (0,-3) and (0,-3)

• (0,-9)

• None

What is the y intercept for the equation:
y = -8x² + 3x - 7

• (0, -8)
• (0, 3)
• (-8, -7)
• (0, -7)

What are the zeros of x²+9x+14

• 2, 7
• -2, -7
• 2, -7
• -2, 7

• A
• B
• C
• D

Solve using square roots.

k² - 6 = 43

• k = √37

• k = 37 or - 37

• k = 7, k = -7

• no real solution

Solve using the square root property:
 $x^2=64$   

•  $x=8,\ \ x=-8$  

•  $x=64,\ \ x=-64$  

•  $x=1,\ \ x=-64$  

•  $x=16,\ \ x=-4$  

What is the y-intercept?
f(x) = -2x² + 4x - 6

• (0, 6)
• (0, -6)
• (6, 0)
• (-6, 0)

What is the axis of symmetry?
f(x) = x² - 8x + 15.

• x = -4
• x = 4
• y = 4
• y = -4