Unit 9 Test Review

• -16

• 32

• 16

• 18

• 45

• 10

• 4.5

• 35

What is the axis of symmetry of the following quadratic function?

• x=-3

• x=-2

• x=-1

• x=0

What is the vertex of the following quadratic function, and does it represent a maximum or a minimum?

• (-5, -1);  minimum

• (-5, -1);  maximum

• (-1, -5);  minimum

• (-1, -5);  maximum

• (0, -20) and (-0.5, -20.25)

• (-5, 0) and (4, 0)

• (0, -5) and (0, 4)

• (0, -20) and (4, 0)

Using the table below, what is the average rate of change from x = 1 to x = 4?

• -9

• 3

• -3

• 9

A ball is thrown into the air from the edge of a 48-foot-high cliff so that it eventually lands on the ground. The graph below shows the height, y, of the ball from the ground after x seconds. 

For which interval is the ball's height always decreasing?

• 0 < x < 2.5

• 0 < x < 5.5

• 2.5 < x < 5.5

• x ≥ 2

Which of the following quadratic functions would have a maximum and how do you know?

• Choice A

• Choice B

• Choice C

• Choice D

Which of the following functions does not represent a quadratic function?

• Choice A

• Choice B

• Choice C

• Choice D

The height of a rocket, at selected times, is shown in the table below.

Based on these data, which statement is not a valid conclusion:

• Choice A

• Choice B

• Choice C

• Choice D