Test - South Carolina Algebra 1 EOCEP Chapter 11

1 pt DOK: 2

4.

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

A

$x = - 9, 9$

B

$x = - 9, 7$

C

$x = - 16, - 2$

D

$x = - 7, 7$

1 pt DOK: 2

7.

Solve $6 a^{2} + 11 a - 10 = 0$ , using the quadratic formula.

A

$\{- \frac{2}{5}, \frac{3}{2}\}$

B

$\{\frac{2}{5}, \frac{2}{3}\}$

C

$\{- \frac{5}{2}, \frac{2}{3}\}$

D

$\{\frac{5}{2}, \frac{2}{3}\}$

1 pt DOK: 2

11.

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

A

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

B

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

C

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

D

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

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