1 pt
DOK: 2

2.

Solve for *x*. ${x}^{2}-3x-18=0$

A

$\left\{-6,3\right\}$

B

$\left\{6,-3\right\}$

C

$\left\{-9,2\right\}$

D

$\left\{9,-2\right\}$

1 pt
DOK: 2

4.

Solve the equation ${\left(x+9\right)}^{2}=49$

A

$x=-9,9$

B

$x=-9,7$

C

$x=-16,-2$

D

$x=-7,7$

1 pt
DOK: 2

6.

Using the quadratic formula, solve the following equation:

$3{x}^{2}=9x$

A

$x=\left\{0,1\right\}$

B

$x=\left\{3,1\right\}$

C

$x=\left\{0,3\right\}$

D

$x=\left\{3,-3\right\}$

1 pt
DOK: 3

8.

A right triangle has a hypotenuse that is four more than the length of the smallest leg. The largest leg is three times the shortest leg, minus ten. What are the lengths of the sides of the triangle?

A

6, 8, 10

B

3, 4, 5

C

10, 24, 26

D

5, 12, 13

1 pt
DOK: 2

9.

Which of the following quadratic functions has a maximum?

A

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

B

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

C

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

D

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