Proportional/Non-Proportional Relationships

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 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

What does the equation y = kx represent?

Back

The equation y = kx represents a proportional relationship where k is the constant of proportionality.

Front

If y = 3x, is this a proportional relationship?

Back

Yes, this is a proportional relationship because it can be expressed in the form y = kx.

Front

What is the constant of proportionality in the equation y = 5x?

Back

The constant of proportionality is 5.

Front

Is the equation y = 1/3x proportional or non-proportional?

Back

Proportional.

Front

What does it mean if a relationship is described as non-proportional?

Back

It means that the relationship does not maintain a constant ratio between the two quantities.

Front

In the context of a video game rental fee, what makes it non-proportional?

Back

The fixed fee of $15 plus a variable fee of $3 per day creates a non-proportional relationship.

Front

What is an example of a proportional relationship?

Back

Total earnings and number of hours worked at a constant hourly rate.

Front

What is an example of a non-proportional relationship?

Back

Total fees charged for carpet cleaning where there is a fixed fee plus a variable fee.