Proportional Nonproportional Graphs

Why does this graph show a non-proportional relationship?

• Because it is proportional

• It goes through the origin

• It does not go through the origin

• It is a straight line

Which graph is non-proportional?

• A

• B

• C

• D

Does the equation show a proportional relationship?

• Yes

• No

Which of the equations below is proportional?

• y = 6x

• y = 3x + 2

• y = 2x + 4

• y = -2x -1

Select all graphs that represent a proportional relationship.

• 
• 

Which graph is proportional?

• A

• B

• C and D

• All of the graphs are proportional

Which best describes this equation?
y= 3.75x + 2

• Proportional 

• Non-proportional

Does this graph represent a proportional relationship?

• Yes, because the line is pretty.

• No, because the line goes through the origin.

• Yes because the line goes through the origin.

• No, because the graph is non-proportional.

The graph shows the water level as a bathtub fills.  Select the correct choice that describes this graph.

• The graph is linear and proportional.

• The graph is linear and non-proportional.

Which best describes the table?

• proportional

• non-proportional