Rate of Change and Proportional Relationships

Write an equation for this relationship.

• y=1/5x

• y=1/2x

• y=2x

• y=5x

Is this graph proportional?

• Yes

• No

Find the unit rate of 624 calories in 3 servings.

• 872 calories per serving

• 208 calories per serving

• 624 calories per serving

• 621 calories per serving

Does this equation represent a proportional relationship?

• Yes

• No

Which graph is non-proportional?

• A

• B

• C

• D

What is the constant rate of change?

• Not here.

• $80 per month.

• $82 per month.

• $41 per month.

Is this graph proportional?

• Yes

• No

Which graph is proportional?

• A

• B

• C and D

• All of the graphs are proportional

Does the table show a proportional relationship?

• Yes

• No

Which statement best describes the relationship of x and y in the table?

• Proportional

• Not Proportional