Proportional Relationships

Find the constant of proportionality from the table to the left.

• 0.6

• 0.75

• 1.67

• There is no constant. The table is not proportional.

John spent $36 to buy 4 basketballs. What was the price per basketball?

• $6

• $0.11

• $144

• $9

Drew is an artist. He paints portraits. The table shows the number of portraits painted in hours. Do the numbers in the table represent a proportional relationship?

• Yes. The table is proportional.

• No. The table is not proportional.

Find the constant of proportionality from the graph.

• k = 1

• k = 1.75

• k = .57

• k = 2

A cake recipe needs 2 ¹⁄₃ cups of sugar to make ³⁄₄ of a cake. How much sugar is needed to make 1 cake ?

• ⁹⁄₂₈

• 3 ¹⁄₉

• 1 ¾

• 1 ⁷⁄₁₂

The graph represents the total number of cups of coffee and the total amount of sugar required to make the coffee. What is the constant of proportionality ?

• k = 0.2

• k = 5

• k = 8.2

• k = 10

Is the following graph proportional?

• Yes. It is proportional.

• No. It is not proportional.

Ava read 126 books in 12 months. How many books per month did she read?

• 4

• 20

• 10.5

• 5

Is the following table proportional ?

• Yes. The table is proportional.

• No. The table is not proportional.

The graph below represents the number of clothes washed by the washing machines. What is the constant of proportionality?

• 15

• 0.067

• 30

• 0.50