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Graphs of Proportional Relationships Quick Check
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Question
Use the image to answer the question.

A graph with x-axis and y-axis ranging from 0 to 8 in unit increments shows a line. The line passes through the following plotted points: left parenthesis 0 comma 0 right parenthesis; left parenthesis 2 comma 3 right parenthesis; and left parenthesis 4 comma 6 right parenthesis.

Identify the constant of proportionality from the graph.

(1 point)
Responses

12
Start Fraction 1 over 2 End Fraction

2
2

23
Start Fraction 2 over 3 End Fraction

32
Start Fraction 3 over 2 End Fraction
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Answers

Answered by TOOSHOT
Use the image to answer the question.

A graph shows an x-axis representing time in seconds ranging from 0 to 12 in increments of 2. The y-axis represents heartbeats ranging from 0 to 18 in increments of 3. The graph shows a line representing resting heart rate.



What is the average number of heartbeats per second?

(1 point)
Responses

3 beats per second
3 beats per second

2 beats per second
2 beats per second

23 beat per second
Start Fraction 2 over 3 End Fraction beat per second

112 beats per second
1 Start Fraction 1 over 2 End Fraction beats per second
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Answered by TOOSHOT
Use the image to answer the question.

A figure shows four graphs labeled A, B, C, and D, each with an x and y axis and 0 at the origin, and each showing a curve. Graph A shows a straight line with a negative slope having x and y intercepts. Graph B shows a straight line with a positive slope having a y intercept above origin. Graph C shows an increasing concave up curve initiating at the origin. Graph D shows a straight line with a unit slope.

Decide which graph shows a proportional relationship.

(1 point)
Responses

A
A

C
C

B
B

D
D
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Answered by TOOSHOT
Use the image to answer the question.



A graph with x and y axes shows four curves labeled A, B, C, and D. Curve A has a step-like structure initiating at the origin, increasing steadily, tapering to a point, and again increasing. Curve B begins at the origin and is an increasing concave down curve. Curve C is a straight line with a unit slope. Curve D is a straight line that initiates at a point on the y-axis and then increases steadily.
Identify the proportional relationship from the graph.

(1 point)
Responses

Graph B
Graph B

Graph C
Graph C

Graph D
Graph D

Graph A
Graph A
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Answered by TOOSHOT
Use the table to answer the question.

Time walking (minutes) 20 30 40 60 80
Calories burned 100 150 200 300 400
The table shows a relationship between the amount of time spent walking and the number of calories burned. Determine if the relationship is proportional.

(1 point)
Responses

The relationship is non-proportional; the graph would be an arc.
The relationship is non-proportional; the graph would be an arc.

The proportional relationship cannot be determined from the information provided.
The proportional relationship cannot be determined from the information provided.

The relationship is proportional.
The relationship is proportional.

The relationship is non-proportional; the graph does not pass through the origin.
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