AnswersMA-Algebra IUnit Test

Introduction to Linear Functions Answers

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1
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Which table represents a linear function?

A
Option
B
Option
C
Option
D
Option
2
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Which pairs of variables have a linear relationship? Select two options.

A
side length and perimeter of 1 face
B
perimeter of 1 face and area of 1 face
C
surface area and volume
D
area of 1 face and surface area
E
side length and volume
3

The final cost of a sale item is determined by multiplying the price on the tag by 75%. Which best describes the function that represents the situation?

Question illustration
A
It is linear because the ratio of the change in the final cost compared to the rate of change in the price tag is constant.
B
It is linear because the function is continuous.
C
It is nonlinear because the final cost is determined by multiplying each price tag by 0.75.
D
It is nonlinear because the price tag and final cost columns do not have the same common difference.
4

The graphs below shows some properties of regular polygons.

Question illustration
A
0
B
1
C
2
D
3
5

Roger and Rita each drive at a constant speed between Phoenix and San Diego. Each driver’s distance (miles) is shown for the same elapsed time (hours) of the trip. Who had a head start, and how many miles was the head start?

Question illustration
A
Rita had a 28-mile head start.
B
Roger had a 26-mile head start.
C
Roger had a 25-mile head start.
D
Rita had a 22-mile head start.
6

A data set contains an independent and a dependent variable. Which must be true of the data set if a linear function can be used to represent the data?

A
The set must have a constant additive rate of change.
B
The set must have a constant multiplicative rate of change.
C
The values in the set must be positive.
D
The values in the set must be increasing.
7

Which table represents a linear function?

A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
8

Which functions have an additive rate of change of 3? Select two options.

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
E
Option
Option E
9

Question text not available

Question illustration
A
a = 3
B
a = 8
C
a = 18
D
a = 33
10

The table shows the number of grapes eaten over several minutes.

Question illustration
A
15 grapes eaten per minute
B
15 minutes to eat each grape
C
60 grapes eaten per minute
D
60 minutes to eat each grape

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Introduction to Linear Functions Answers —…