AnswersGrade 7 MathematicsGraphing Proportional Relationships

Graphing Proportional Relationships — Quiz Answers

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1
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Which statement summarizes his exercise routine?

A
Jonathon does 15 push-ups for every 2 crunches.
B
Jonathon does 2 push-ups for every 3 crunches.
C
Jonathon does 3 crunches for every 2 push-ups.
D
Jonathon does 2 push-ups for every 15 crunches.
2
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Jessie spent $10 on 3 hair accessories. Which point represents this relationship?

A
D
B
A
C
B
D
C
3

Sidaanth kept a chart of his savings. Which point represents this relationship? Sidaanth’s Savings Week Savings 1 7 point 0 0 dollars 2 14 point 0 0 dollars 3 21 point 0 0 dollars 4 28 point 0 0 dollars

A
A
B
D
C
C
D
B
5

Sean has 4 science fiction books for every 3 sports books. Which graph represents his book collection?

A
Image with description First quadrant graph with title Book Collection. The x axis is labeled science fiction and goes from 0 to 9 by ones . The y axis is labeled sports and goes from 0 to 9 by ones. There is a point at (4 comma 3) and a point at (8 comma 6).
B
Image with description First quadrant graph with title Book Collection. The x-axis is labeled science fiction and goes from 0 to 9 by ones. The y axis is labeled sports and goes from 0 to 9 by ones. There is a point at (3 comma 5) and a point at (6 comma 9).
C
Image with description First quadrant graph with title Book Collection. The x axis is labeled science fiction and goes from 0 to 9 by ones. The y axis is labeled sports and goes from 0 to 9 by ones. There is a point at (3 comma 2) and a point at (6 comma 4).
D
Image with description First quadrant graph with title Book Collection. The x axis is labeled science fiction and goes from 0 to 9 by ones. The y axis is labeled sports and goes from 0 to 9 by ones. There is point at (3 comma 4) and a point at (6 comma 8).
6

Four students were discussing how to find the unit rate for a proportional relationship. Which method is valid?

A
“Look at the graph of the relationship. Count the number of units up and the number of units to the right one must move to arrive at the next point on the graph. Write these two numbers as a fraction.”
B
“Look at the graph of the relationship. Find the x -value of the point that corresponds to y is equal to 2 . That value is the unit rate.”
C
“Look at the graph of the relationship. Find the y -value of the point that corresponds to x is equal to 1 . That value is the unit rate.”
D
“Look at the graph of the relationship. Find two points which have y -values that are one unit apart. The unit rate is the difference in the corresponding x -values.”
7

Which statement about proportional relationships is false?

A
A proportional relationship must graph as a line.
B
Each point (or pair) in a proportional relationship must share the same difference.
C
A graph of a proportional relationship must pass through open paren 0 comma 0 close paren .
D
Each point (or pair) in a proportional relationship must share the same ratio.
8

A pet store sells 5 goldfish for $15 The store sells 7 goldfish for $21 Graph the line that represents the proportional relationship. To graph a line, select two points.

Answer:

line; 0; 5; 15

9

Chad used the table to show the ratios of the different types of sports game cards that he owns. For every 2 offense cards, he owns 4 defense cards. Which graph represents the proportional relationship between his defense and offense cards? Chad’s Sports Cards Card Type Kicking Team Offense Special Teams Defense Quantity 1 2 3 4

A
Image with description First quadrant graph with title Chad's Cards. The x axis is labeled offense and goes from 0 to 9 by ones. The y axis is labeled defense and goes from 0 to 9 by ones. There is a point at (4 comma 2) and a point at (8 comma 4).
B
Image with description First quadrant graph with title Chad's Cards. The x axis is labeled offense and goes from 0 to 9 by ones. The y axis is labeled defense and goes from 0 to 9 by ones. There is a point at (4 comma 2) and a point at (6 comma 4).
C
Image with description First quadrant graph with title Chad's Cards. The x axis is labeled offense and goes from 0 to 9 by ones. The y axis is labeled defense and goes from 0 to 9 by ones. There is a point at (2 comma 4) and a point at (4 comma 6).
D
Image with description First quadrant graph with title Chad's Cards. The x axis is labeled offense and goes from 0 to 9 by ones. The y axis is labeled defense and goes from 0 to 9 by ones. There is a point at (2 comma 4) and a point at (4 comma 8).
10

Robert can complete 10 inspections in 8 hours. Which represents the unit rate for the number of inspections he completes per hour?

A
5 inspections in 4 hours
B
0 point 8 of an inspection in 1 hour
C
1 point 2 5 inspections in 1 hour
D
4 inspections in 5 hours

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