Identify Linear and Non Linear Relationships

Identify whether the graph represents a  proportional or non-proportional relationship.

• Proportional Relationship

• Non-Proportional Relationship

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

Is this table proportional?

• Yes

• No

Does the table represent a proportional relationship?

• yes

• no

Q1. How much is the total cost?

• A) 8 cents

• B) 50 cents

• C) 40 cents

• D) 45 cents

Which graph is proportional?

• A

• B

• C and D

• All of the graphs are proportional

Does the equation show a proportional relationship?

• Yes

• No

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

Is the graph proportional?

• Yes

• No

These two lines are graphs of nonproportional relationships. What makes them nonproportional?

• They are not straight

• They are not linear

• They do not go through the origin

• They do not show a constant rate of change