Summative Review Ratios and Proportions

The equation y=7.6x represents a proportional relationship. What is the constant of proportionality?

• 7.6

• 7.6x

• $\frac{x}{y}$

• It is not proportional

• Not proportional

• The graph is proportional and the equation is y =150x

• The graph is proportional and the equation is y =125x

Choose one ordered pair on the

graph. What does it represent in this

situation?

• It takes 40 minutes to fold 6,000 sheets

• It takes 25 minutes to fold 3,000 sheets

• It takes 5 minutes to fold 500 sheets

• $\frac{3}{32}$ miles per hour

• $\frac{2}{3}$ miles per hour

• $1\frac{1}{2}$ miles per horu

• 4 miles per hour

• 38 words per minute

• 52 words per minute

• 54 words per minute

• 46 words per minute

The relationship between x and y is proportional. When

x is 3, y is 51. What is x when y is 204?

• 16

• 24

• 12

• 13

The graph shows a proportional relationship between the number of miles marco bikes and the number of hours. What equation relates the distance, y, and the time, x?

• y = 12.5x

• x = 15y

• y = 15x

• y = 13x

The graph shows a proportional relationship between the number of tennis balls and the number of cans. What does the point (2,6) represent in this situation?

• 2 tennis balls are split into 6 cans

• Nothing because the graph is not proportional

• 2 cans contain 6 tennis balls

• The unit rate

Does the table represent a proportional relationship between purple frame and green frames?

• Yes because y =0.29x

• Yes because y = 3.5x

• No it is not proportional

• 975

• 550

• 960

• 675