Proportional vs Non Proportional

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where the ratio of one quantity to the other quantity is constant.

Front

What is a non-proportional relationship?

Back

A non-proportional relationship is a relationship where the ratio of one quantity to another is not constant.

Front

If d=2t, is this relationship proportional or non-proportional?

Back

Proportional

Front

What does it mean if a membership costs $10 per month?

Back

This is a proportional relationship because the cost increases consistently with time.

Front

A personal pizza costs $7.00 plus $0.50 per topping. Is this proportional or non-proportional?

Back

Non-Proportional

Front

How can you determine if a table represents a proportional relationship?

Back

Check if the ratios of corresponding values are constant.

Front

What is the rate of change in a proportional relationship?

Back

The rate of change is constant and can be calculated as rise/run.

Front

If the rate of change is 1, what does this indicate about the relationship?

Back

It indicates a direct proportional relationship where for every unit increase in one quantity, the other quantity increases by the same amount.

Front

What is an example of a proportional relationship in real life?

Back

The cost of apples at a store where each apple costs the same amount.

Front

What is an example of a non-proportional relationship in real life?

Back

A taxi fare that has a base fee plus a charge per mile.