AnswersNBHS FL-1200370-Algebra 1-A Semester 1Unit Test

Unit Test — Unit test Answers

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21
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Question text not available

Question illustration
A
a = 2
B
a = 3
C
a = 19
D
a = 35
22
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Alaina wants to decide whether her current cell phone plan is better than a package that another company offers. To compare the two plans, she plotted two lines on a graph, where y represented the total cost of one month’s service and x represented the megabytes of data that she used in a month. Which part of the graph will represent the cost per megabyte of data used in each plan?

A
The x-intercepts of the two lines
B
The y-intercepts of the two lines.
C
The slopes of the two lines.
D
The coordinates of a point of intersection.
23

The line represented by the equation 3x + 5y = 2 has a slope of . Which shows the graph of this equation?

Question illustration
A
Option
B
Option
C
Option
D
Option
24

A coordinate plane with a line passing through the points (0, negative 4) and (2, 2).

Question illustration
A
–3x + y = –4
B
y = 3x – 4
C
y + 3x = 4
D
3x – y = 4
25

Which relationship has a zero slope?

Question illustration
A
Option
B
Option
C
Option
D
Option
26

Pauley graphs the change in temperature of a glass of hot tea over time. He sees that the function appears to decrease quickly at first, then decrease more slowly as time passes. Which best describes this function?

A
It is linear because the graph decreases over time.
B
It is linear because there is both an independent and a dependent variable.
C
It is nonlinear because linear functions are increasing functions.
D
It is nonlinear because linear functions increase or decrease at the same rate.
27

The table shows the profit from a school book fair based on the number of books sold.

Question illustration
A
$0.50 per book
B
$0.67 per book
C
$1.07 per book
D
$1.50 per book
28

The graph shows the amount of money Miguel earns after working x hours.

Question illustration
A
hours per dollar
Option A
B
hours per dollar
Option B
C
3 dollars per hour
D
13 dollars per hour
29

A ramp with a constant incline is made to connect a driveway to a front door. At a point 4 feet from the driveway, the height of the ramp is 12 inches. At a point 6 feet from the driveway, the height of the ramp is 18 inches. What is the rate of change of the ramp’s incline?

A
inch up per foot across
Option A
B
inch up per foot across
Option B
C
2 inches up per foot across
D
3 inches up per foot across
30

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.
31

Which table represents a linear function?

A
Option
B
Option
C
Option
D
Option
32

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
33

Elena agrees to finish a knitting project for a friend. The graph shows the number of rows Elena completes compared to the amount of time spent knitting.

Question illustration
A
12
B
14
C
15
D
19
34

Question text not available

Question illustration
A
a = 3
B
a = 8
C
a = 18
D
a = 33
35

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.
36

Which table represents a linear function?

A
Option
B
Option
C
Option
D
Option
37

The graphs below shows some properties of regular polygons.

Question illustration
A
0
B
1
C
2
D
3
38

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
39

Megan and Suzanne each have a plant. They track the growth of their plants for four weeks. Whose plant grew at a faster rate, and what was the rate?

Question illustration
A
Suzanne’s at 2 inches per week
B
Suzanne’s at 1.5 inches per week
C
Megan’s at 3 inches per week
D
Megan’s at 2.5 inches per week
40

Which table represents a linear function?

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

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