Ratios/Proportional Relationship Unit Review

NAME

The cost of 3 pounds of grapes is $6.57. What is the constant of proportionality that relates the cost in dollars, y, to the pounds of grapes, x?

Determine the constant of proportionality for the graph.

Yolanda completed 1/3 of her test in 2/5 of an hour. If Yolanda's rate stayed the same, how much of her test was finished in one hour?

Julius feeds hay to his horse every day. This graph shows the relationship between the total amount of hay Julius feeds his horse, h, and the number of days, d. Which of the following best describes the constant of proportionality (k), the amount of hay Julius feeds his horse each day, in the graph above?

• 10 pounds per day
• 17 pounds per day
• 170 pounds per day
• The relationship in the graph is not proportional and therefore does not have a constant of proportionality

What is the constant of probability?

How many minutes did the sloth travel if the sloth went 42 feet?

What does Point A on the graph represent?

• 2 tanks filled with 6 gallons of water.
• 6 tanks filled with 2 gallons of water.
• 2 minutes to fill 6 gallons of water.
• 6 minutes to fill 2 gallons of water.

Which equation could be written for the table below?

• y = 5/2x
• y = 2/3x
• y = 1/4x