Proportional Relationship Study Guide

Which graph represents a proportional relationship?

• Graph A

• Graph B

• Graph C

• Graph D

The table below shows a proportional relationship. What is the constant of proportionality? (hint: what is “k”)

• 2/4

• 3/1

• 5/3

• 1/3

The graph below shows the commissions Jack earned on his sales. Explain the relationship represented by the ordered pair (1,10) on the graph.

• For $10 in sales Jack earns $1 in commissions

• For $1 in sales Jack earns $10 in commissions

• For $10 in sales Jack earns $10 in commissions

• For $1 in sales Jack earns $1 in commissions

The cost of a tent rental is $160 for 5 days. At this rate, how much does it cost to rent the tent for one day?

• $25

• $30

• $32

• $35

Sandra bought 3 pounds of nuts for $10.35. What is the unit price per pound?

• $3.45

• $4.65

• $6.65

• $7.35

Which of the following shows the least expensive unit price?

• 3 oranges for $1.02

• 4 oranges for $1.52

• 5 oranges for $1.75

• 6 oranges for $2.46

What is the unit cost of a uniform?

• $2 per uniform

• $5 per uniform

• $10 per uniform

• $20 per uniform

How much will it cost the team to order 8 uniforms?

• $20

• $140

• $160

• $180

What is the equation represented by the graph above?

• y = 60/6 x

• y = 9/80 x

• y = 1/10 x

• y = 10x

What is the equation for the table?