Determine If a Graph Is Proportional

Which of the following graphs does not represent a proportional relationship?

• Graph A

• Graph B

• Graph C

• Graph D

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

Determine the constant of proportionality for the following graph and create an equation to represent the proportional relationship.

• k = 60 miles per hour; m=60h

• k = 1/60 miles per hour; m=1/60h

• k = 60 hours per mile; h=60m

• k = 60 miles per hour; h=60m

What equation is ALWAYS used to determine proportional relationships?

• x=ky

• y=kx

• y=k

• y=x

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

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

• b=3a

• y=3x

• y=1/3x

• There is no equation because the table is not proportional.

Which best describes the graph represented in this table?

•  proportional

• non-proportional

Is the graph proportional or non proportional?

• proportional

• non proportional

Which graph is proportional?

• A

• B

• C and D

• All of the graphs are proportional