Quiz about Algebra 2 Retest

Question 1

Which of the following represents a function?

Accepted Answer

Option A is correct

Answer

$$x=-3$$

Answer

$$x=5$$

Answer

$$\left\{\left(2,4\right),\ \left(2,6\right),\ \left(3,8\right),\ \left(4,\ 10\right)\right\}$$

Question 2

Let f(x)= -5x+6. Find x when f(x)=51

Accepted Answer

-9

Answer

-249

Answer

7

Answer

95

Question 3

What is the range of a linear function?

Accepted Answer

All real numbers

Answer

$$y\ge0$$

Answer

$$x\ge0$$

Answer

$$\left\{y\left|y e0 ight| ight\}$$

Question 4

Which set of numbers does NOT contain the value below?

$$\sqrt[]{3}-\sqrt[]{3}$$

Accepted Answer

Natural

Answer

Real

Answer

Integer

Answer

Rational

Question 5

Which of the following values is considered rational?

Accepted Answer

$$\sqrt[]{81}$$

Answer

$$\pi$$

Answer

$$\sqrt[]{28}$$

Answer

$$\sqrt[]{50}$$

Question 6

Given the graph below, determine the domain in interval notation

Accepted Answer

$$\left(-2,3\right]$$

Answer

$$\left(-\infty,\infty\right)$$

Answer

$$\left[-2,3\right]$$

Answer

$$\left[-2,3\right)$$

Question 7

Use interval notation to represent $$-55\le x<35$$ .

Accepted Answer

$$\left[-55,35\right)$$

Answer

$$\left[-55,35\right]$$

Answer

$$\left(-55,35\right)$$

Answer

$$\left(-55,35\right]$$

Question 8

What set of numbers does the following number belong to? $$\sqrt[]{4}$$

Accepted Answer

Natural Numbers, Whole Numbers, Integers, Rational Numbers, and Real Numbers

Answer

Whole Numbers, Integers, and Real Numbers

Answer

Irrational Numbers and Real Numbers

Answer

Rational Numbers and Real Numbers

Question 9

Type the interval $$\left[-3,\ \infty\right)$$ in set notation.

Accepted Answer

$$x\ge-3$$

Answer

$$x\le-3$$

Answer

$$x>-3$$

Answer

$$x<-3$$

Question 10

What value is in the range but not in the domain?

Accepted Answer

-2

Answer

3

Answer

-1

Answer

0

Question 11

Which parent functions have a range of all real numbers?

Accepted Answer

$$y=x$$

Answer

$$y=2^x$$

Answer

$$y=\left|x\right|$$

Answer

$$y=\sqrt[]{x}$$

Question 12

Which functions represents $$f\left(3\right)=7$$

Accepted Answer

$$f\left(x\right)=x^3-20$$

Answer

$$f\left(x\right)=3x+5$$

Answer

$$f\left(x\right)=-2x^2-x+5$$

Answer

$$f\left(x\right)=x^2+4$$

Question 13

The following graph is a representation of what parent function?

Accepted Answer

$$y=\left|x\right|$$

Answer

$$y=\sqrt[3]{x}$$

Answer

$$y=x^3$$

Answer

$$y=x^2$$

Question 14

Which function has a range of all real numbers greater than or equal to -3?

Accepted Answer

$$y=\left(x+2\right)^2-3$$

Answer

$$y=x-3$$

Answer

$$y=-3x$$

Answer

$$y=x^3-3$$

Question 15

A YouTuber can predict her subscriber count using the function s(v) = 3v + 430, where v is the number of views on her new video. What is the predicted number of new subscribers if she has 5,000 new views on her video?

Accepted Answer

15,430

Answer

2,379

Answer

30,530

Answer

1,523.3

Question 16

Write the following number line in interval notation.

Accepted Answer

$$\left(-\infty,-2\right]\ \cup\left(5,\infty\right)$$

Answer

$$\left[-\infty,-2\right]\cup\left[5,\infty\right]$$

Answer

$$\left(-\infty,-2\right)\cup\left(5,\infty\right)$$

Answer

$$\left[-\infty,-2\right)\cup\left[5,\infty\right]$$

Question 17

Simplify the following expression.

$$\sqrt[]{289}-\left(5-8\right)^2+384\div4^3$$

Accepted Answer

14

Answer

32

Answer

-6

Answer

-12

Question 18

Which graph represents the equation 2x + 4y = 12?

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Algebra 2 Retest

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