Proportional Relationships End of Unit Review

There is a proportional relationship between the number of kids in a group, x, and the total number of caramel chews Paco gives to that group, y. What is the constant of proportionality?

• k = 4

• k = 2

• k = 5

• k = 1

Which equation would match this proportional relationship?

• y = 45x 

• y = 30x 

• y = 15x 

• y = -45x

Which equation would match this proportional relationship?

• y = 3x

• y = 5x

• y = 10x

• y = 2x

Which equation would match this proportional relationship?

• y = 9x

• y = 2x

• y = 3x

• y = 5x

• y = x
• y = 2x
• y = 3x
• y = 4x

• y = 2x
• y = x
• y = 3x
• y = 9x

Find the Unit Rate.
40 centimeters of snow in 20 hours.

• 2 centimeters per hour

• 1200 centimeters per hour

• 3 centimeters per hour

• 1100 centimeters per hour

Francine uses 2/3 cup of pineapple juice for every 1/3 cup of orange juice to make a smoothie.How many cups of pineapple juice Francine uses for 1 cup of orange juice?

• 2 cups

• 3 cups

• 1/2 cup

• 1/3 cup

What is the unit rate, or constant of proportionality?

• k = 3

• k = 6

• k = 9

• k = 12

What is the Constant of Proportionality?

• k = 1

• k = 2

• k = 3

• k = 4