Quadratic Review

• Axis of Symmetry: x = 10
  Vertex: (10, -28)

• Axis of Symmetry: x = 5
  Vertex: (5, -3)

• Axis of Symmetry: x = -5
  Vertex: (-5, -103)

• Axis of Symmetry: x = 5
  Vertex: (5, 47)

• x=-11, x=4

• x=-7, x-44

• x=11, x=-4

• no solutions

Solve Using the Quadratic Formula
 x² + 4x - 40 = -8

• -10 & -4

• -4 & 10

• -8 & 4

• 8 & -4

Your nephew is standing on his deck, which is 4 feet off the ground. He tosses his toy up into the air. The equation h = -2t² + 7t + 4 models the toy's height, h, from the ground at t seconds after he threw it. How high is the toy after 1 second?

• 2

• 4

• 9

• 10

• 15

Fireworks are fired from the roof of a 100-foot building. The equation h = -16t² +84t + 100 models the height, h, of the fireworks at any given time, t. How high do the fireworks get?

• 2.625

• 6.25

• 100

• 200

• 210.25

Which quadratic equation has roots of -5 and 2?

•  $y=x^2-3x-10$  

•  $y=x^2+7x+10$  

•  $y=x^2+3x-10$  

•  $y=x^2-7x+10$ 

Select the quadratic equation(s) that have two roots.

• y = x²-8x-20

• y = x² +3

• y = x²-2x+1

• y = x²-25

• y = 4x² +12x+9

What piece of information does c identify in the following equation?
y=ax²+bx+c

• Zeroes

• Axis of Symmetry

• Direction

• y-intercept

Select all the potential factors of the given graph.

• (x+3)

• (x-3)

• (x-8)

• (x+8)

• x

Name the zeros.

• (0,5)

• (-2,1)

• The origin

• No Solutions