1 pt
DOK: 2

1.

Which of the following quadratic functions has a maximum?

A

$f\left(x\right)=-{(x+8)}^{2}+9$

B

$f\left(x\right)=\frac{3}{7}{(x-7)}^{2}+3$

C

$f\left(x\right)={(x+8)}^{2}+9$

D

$f\left(x\right)=\frac{7}{3}{(x+7)}^{2}-3$

1 pt
DOK: 2

3.

What is $f\left(x\right)=8{x}^{2}-48x+58$ in vertex form?

A

$f\left(x\right)=8{(x-3)}^{2}-14$

B

$f\left(x\right)=8{(x-3)}^{2}+14$

C

$f\left(x\right)=8{(x+3)}^{2}-14$

D

$f\left(x\right)=8{(x+3)}^{2}+14$

1 pt
DOK: 2

4.

What is the average rate of change of the quadratic function $f\left(x\right)=8{(x+4)}^{2}-16$ from *x*=` to *x*=3?

A

30

B

40

C

50

D

60

1 pt
DOK: 1

6.

The graph of the quadratic funtion $f\left(x\right)={x}^{2}+4x+7$ is shown. Based on this information, how many solutions does the quadratic equation ${x}^{2}+4x-7$ have?

A

0

B

1

C

2

D

It cannot be determined.

1 pt
DOK: 2

7.

According to the graph, if Holly’s family is parked for a total of 3 hours and 15 minutes, how much will they pay for parking?

A

$12

B

$13

C

$14

D

$16