Proportional Relationships Practice Test

A cookie recipe calls for 1/4 cup of sugar for every 1/8 cup of flour. How much flour will be needed if 1 cup of sugar is used?

• 1/32 cup of flour

• 1/2 cup of flour

• 1 cup of flour

• 32 cups of flour

Which of the following equations represent proportional relationships?

• y = -2x

• y = 1/2 x

• y = 3x + 5

• 2y = 6x

• y = 3 + 2x

Which equation models the situation where the total cost of n hats is $90 and the hats are priced at a constant rate of $15 each?

• 90 = 15n

• n = 90 (15)

• 15 + n = 90

• 90 + n = 15

Which equation represents a proportional relationship with a constant of proportionality equal to -3?

• y = 3x

• y = -3x

• y = x - 3

• y = -3x + 9

According to the graph, which statements are correct about the proportional relationship between the number of hours Dandy Doughnut Shop spends making doughnuts and the number of doughnuts made by the shop? (Choose 2 answers)

• The shop can make 120 doughnuts in 4 hours.

• The shop can make 145 doughnuts in 5 hours.

• The unit rate is 30 doughnuts in 1 hour.

• The unit rate is 60 doughnuts in 2 hours.

• The shop can make 90 doughnuts in 1.5 hours.

The table shows the relationship between miles traveled, x, and the gallons of gas used, y. Which equation best represents this relationship?

• y = 35x

• y = 1/35 x

• 35 = 1x

• y = 3.5x

What is the constant of proportionality in the equation y = -2x?

• 2

• -2

• 1/2

• -2x

Which graph represents a proportional relationship?

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• 
• 
• 

Adam is biking home from school. At one point, he dropped his phone and had to stop, backtrack, and find it. How many total miles did Adam ride his bike?

• 8

• 9

• 10

• 90

The table represents a proportional relationship to rent a bicycle. Write an equation to represent this relationship.

• y = 0x

• y = 16.5x

• y = 22x

• y = 5.5x