Identifying Proportional and Nonproportional Relationships

Does the table show a proportional relationship?

• Yes

• No

Which graph is proportional?

• A

• B

• C and D

• All of the graphs are proportional

Why does this graph show a non-proportional relationship?

• It doesn't, it is proportional because it is a straight line

• It goes through the origin

• It does not go through the origin

• It is a straight line

Is the graph proportional or non proportional?

• proportional

• non proportional

Which of these could be a constant of proportionality.

• 20

• 40

• 2

• 80

Does the following table represent a proportional relationship? If so identify the constant of proportional and create an equation to represent it.

• Proportional; k = 1/40 pages per day; y=1/40x

• Proportional; k = 40 pages per day; y=40x

• Not Proportional

• Proportional; k = 40 days per pages; y=40x

Create an equation to represent the proportional relationship in the table given.

• y = 1/3x

• y = 3x

• y = 1/2x

• x = 3y

Does the following graph represent a proportional relationship?

• No, because it does not start at the origin.

• No, because it is not a straight line.

• Yes, because it starts at the origin.

• Yes, because it is a straight line.

Does the equation g=1/4w represent a proportional relationship? If so, identify the constant of proportionality.

• Proportional; k=1/4

• Proportional; k=4

• Not Proportional

Does the following table represent a proportional relationship? If so, identify the constant of proportionality and create an equation to represent it.

• Proportional; k=8; y=8x

• Not Proportional

• Proportional; k = -8; y=-8x

• Proportional; k=1/8; y=1/8x