Proportional Relationships

Front

What is a proportional relationship?

Back

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

Front

What does it mean if a graph goes through the origin?

Back

It indicates a proportional relationship between the variables.

Front

How do you find the constant of proportionality?

Back

By dividing one quantity by the other in a proportional relationship.

Front

What is the unit rate?

Back

The constant of proportionality expressed as a ratio of one unit of the first quantity to the second quantity.

Front

If a graph is a straight line but does not go through the origin, what type of relationship does it represent?

Back

A non-proportional relationship.

Front

What is the equation of a proportional relationship?

Back

It can be expressed in the form y = kx, where k is the constant of proportionality.

Front

If 120 customers visit a store in 8 hours, how many customers visit per hour?

Back

15 customers per hour.

Front

What is the cost of one slice of pizza if a pizza with 8 slices costs $12?

Back

$1.50 per slice.

Front

What does the slope of a line represent in a proportional relationship?

Back

The constant of proportionality.

Front

If y = 8x, what is the constant of proportionality?

Back

8.