Functions — Test

Question 1

Which graph shows a set of ordered pairs that represent a function?

Revolt · Accepted Answer

Image with description A coordinate plane with 6 plotted points. The x and y-axes are labeled from negative 5 to 5 in increments of 1. The points are plotted at negative 2 comma 3, negative 1 comma 2, 1 comma 1, 2 comma 0, 3 comma negative 3, and 4 comma negative 5.

Question 2

A store sells notebooks for 3 dollars each and does not charge sales tax. If x represents the number of notebooks Adele buys and y represents the total cost of the notebooks she buys, which best describes the values of x and y ?

Revolt · Accepted Answer

The value of x can be any integer greater than or equal to 0 , and y will be an integer greater than or equal to 0 .

Question 3

Simplify the expression shown. 3 x plus 2 minus 3 x plus 7 plus 5 x What is the coefficient in the simplified expression?

Revolt · Accepted Answer

5

Question 4

What are the x -intercepts of the graphed function?

Revolt · Accepted Answer

negative 3 comma 0 and 1 comma 0

Question 5

Which is a possible turning point for the continuous function f of x ?

Revolt · Accepted Answer

0 comma negative 2

Functions — Test Answers

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