End of Unit 4 Assessment 7.RP.1 - 7.RP.3

• 5

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NC.7.RP.1

• 2

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NC.7.RP.1

This table shows the relationship between pounds of apples (x) and the cost of apples (y).
Write an equation to model this relationship.

• y = kx

• y = 1.88

• y = 1.88x

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NC.7.RP.2

The cost of a taxi ride increases at a steady rate.  The cost of the ride for the number of miles traveled is shown in the graph in your work space. 

Write an equation to represent this relationship.

• y = 1.50

• y = 1.50x

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7.RP.2

The graph in your work space shows the number of hours Emily works and the total amount she is paid. Write an equation to represent the relationship.

• 8

• k = 8

• y = 20

• y = 8x

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NC.7.RP.2

The cost of bananas at store C is represented by the equation y = 0.49x, where x is the number of pounds of bananas sold and y is the total cost. The cost of bananas at store D is shown in this table. What is the difference in the cost per pound of bananas at stores C and D?

• $0.60

• $0.49

• $0.11

• $0.10

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NC.7.RP.2

• 70 students

• 35 students

• 105 students

• 280 students

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NC 7.RP.3

A 3-pound bag of apples costs $3.94, and a 5-pound bag costs $5.92.

Which bag has the lowest unit price per pound, and by how much?

• a 3-pound bag, by $0.13

• a 3-pound bag, by $1.98

• a 5-pound bag, by $0.13

• a 5-pound bag, by $1.98

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NC.7.RP.1

• 59.5 miles per hour

• 60.5 miles per hour

• 61.5 miles per hour

• 62.5 miles per hour

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NC 7.RP.3

This table shows the number of hours Lara worked, x, and her total earnings, y, each week for four weeks. Which equation can be used to find the total amount Lara earns based

on the number of hours she works?

• y = 12 – x

• y = 12 + x

• y = -12x

• y = 12x

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NC.7.RP.2