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Proportional Relationships

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Mathematics

7th Grade

Proportional Relationships
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13 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Three friends are buying seashells at the gift shop on the beach. Melanie buys 2 seashells for​ $0.80. Rosi buys 5 seashells for​ $2.00. Carlos buys 4 seashells for​ $1.60. Which graph represents the situation?

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2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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Error Analysis: You and a friend look at the graph. Your friend incorrectly says the constant of proportionality of y to x is 1/18. Find the correct constant of proportionality. What is your​ friend's likely​ error?

Your friend found x/y.

Your friend found x−y.

Your friend found x•y.

Your friend found x+y.

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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In a certain​ city, there are two stores where you can rent DVDs. The table shows the cost y in dollars to rent x DVDs at store A. The graph represents the cost at store B. At which store is the cost of renting DVDs the​ least and what is the constant of proportionality?

Store A: $3.15

Store A: $3.20

Store B: $3.20

Store B: $3.15

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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The graph shows the relationship between the distance a taxi travels and the cost of the taxi ride. Is the relationship​ proportional? Explain. What is true about the graph?

The relationship is not proportional because the graph does not pass through the origin.

The relationship is not proportional because the graph is not a straight line.

The relationship is proportional because the cost increases as the distance increases.

The relationship is proportional because the graph is a straight line.

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

You bike 11.2 miles in 1.4 hours at a steady rate. What equation represents the proportional relationship between the x hours you bike and the distance y in miles that you​ travel?

9

8

.125

.135

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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The graph shows a proportional relationship between a​ family's distance from home and the time they spent driving. What is the constant of​ proportionality? What does the point​ (1,49) represent?

The distance to the destination.

The time driven on the vacation.

49 hours and being 1 mile from home.

1 hour and being 49 miles from home.

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A recipe calls for 3 ounces of flour(x) for every 2 ounces of sugar(y). Find the constant of proportionality.

2/3

3/2

5

6

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