TCAP Success ALGEBRA 2 EOC Chapter 11

DOK: 2
1 pt

11.

What are the roots of the equation ${x}^{3}-19x+30=0$?

A

*x*=-5, -2, and 3

B

*x*=-5, 2, and 3

C

*x*=-2, 3, and 5

D

*x*=2, 3, and 5

DOK: 2
1 pt

13.

The graph of the function $f\left(x\right)={x}^{3}+5{x}^{2}+2x-8$ is shown below. What is the solution to the equation ${x}^{3}+5{x}^{2}+2x-8=0$?

A

*x*=-4, -2, and 1

B

*x*=-4, 2, and 1

C

*x*=-2, -1, and 4

D

*x*=-2, 1, and 4

DOK: 2
1 pt

15.

A polynomial function has a range of y ≥ 22. Which of these must the function have?

A

A relative maximum

B

A relative minimum

C

An absolute maximum

D

An absolute minimum

DOK: 2
1 pt

17.

What are the intervals of increase of the function graphed below?

A

(–∞, –3) and (3, ∞)

B

(–∞, –1) and (3, ∞)

C

(–∞, 1) and (3, ∞)

D

(–∞, 3) and (3, ∞)

DOK: 2
1 pt

19.

Which of these functions has a range of all real numbers?

A

$f\left(x\right)=-18{x}^{6}-7$

B

$f\left(x\right)=-14{x}^{4}+3$

C

$f\left(x\right)=12{x}^{3}+5$

D

$f\left(x\right)=16{x}^{2}-1$