Unit 5 Review: Proportional Relationships

What is the value of x?

Which statement best describes the relationship between x and y in the table?

• Proportional

• Not Proportional

What is the unit rate for the rain fall?

• 2 cm per hour

• 1 cm per hour

• ¹/₂ cm per hour

• 4 cm per hour

Does the graph show a proportional relationship?

• Yes

• No

• Proportional

• Non-proportional

What is the unit rate, or constant of proportionality?

• $3

• $4

• $2

• $9

Does this table represent a proportional relationship?

• Yes

• No

What word describes the constant value of the ratio of proportional quantities x and y? Hint: It is another word for the unit rate.

• Constant of Proportionality

• Equivalent Fraction

• Proportion

• Scale Factor

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