Identify Proportional Relationships from Graphs

Match the correct equation to the graph

• y = x

• y = 7x

• y = 21x

• y = 3x

Match the correct equation to the graph

• y = 16x

• y = 8x

• y = 2x

• y = 4x

Match the correct equation to the graph

• y = 90x

• y = 9x

• y = 10x

• y = 2x

What does the point (6, 4) mean on the graph?

• 6 laps in 4 minutes

• 2 laps in 3 minutes

• 2/3 of a lap in 1 minute

• 4 laps in 6 minutes

Which graphs show a proportional relationship?

• A and B

• B and D

• A and C

• C and D

The graph shows the cost in dollars of pounds of blueberries, a proportional relationship. Select all the true statements.

• 1 pound of blueberries costs $2.75.

• 2.75 pounds of blueberries cost $1.

• 5 pounds of blueberries cost $15.50.

• 12 pounds of blueberries cost $33.

• The point (3.9) is on the graph of the proportional relationship.

Does the graph represent a proportional relationship?

• yes

• no

Identify the constant of proportionality.

• 25

• 50

• 100

• 1/50

• none (not proportional)

Which statement below accurately represents the graph?

• $100 is earned for each hour worked

• $200 earned for every 2 hours worked
  is the unit rate

• $500 is earned for every 8 hours worked

Create an equation for this proportional relationship.

• y = 10x

• y = 20x

• y = 5x

• y = 0.5x