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 quantity is constant.

Front

What is a non-proportional relationship?

Back

A non-proportional relationship is a relationship between two quantities where the ratio is not constant.

Front

How do you find the unit rate?

Back

To find the unit rate, divide the total amount by the number of units.

Front

What is the unit rate of $3.60 for 3 pounds of apples?

Back

$1.20 per pound.

Front

If a car travels 280 miles in 7 hours, what is the unit rate of speed?

Back

40 miles per hour.

Front

If a car travels at a constant speed of 40 miles per hour, how far will it travel in 12 hours?

Back

480 miles.

Front

What is the equation for a proportional relationship?

Back

Front

What does the constant of proportionality represent?

Back

It represents the ratio between the two quantities in a proportional relationship.

Front

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

Back

If the ratios of the corresponding values are constant, it represents a proportional relationship.

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together, expressed as a fraction with a denominator of one.