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

How do you find the constant of proportionality (k)?

Back

The constant of proportionality (k) can be found using the formula k = y/x.

Front

What does the ordered pair (x, y) represent in a proportional relationship?

Back

The ordered pair (x, y) represents the quantities in a proportional relationship, where y is proportional to x.

Front

If a machine folds 3,000 sheets in 20 minutes, what is the unit rate?

Back

The unit rate is 150 sheets per minute.

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 quantity per one unit.

Front

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

Back

A table represents a proportional relationship if the ratios of the corresponding values are constant.

Front

If Perry earned $96 for shoveling 8 driveways, how much would he earn for 6 driveways?

Back

Perry would earn $72 for shoveling 6 driveways.

Front

What is the formula for finding the unit rate?

Back

The formula for finding the unit rate is: Unit Rate = Total Quantity / Number of Units.

Front

What does it mean if two quantities are directly proportional?

Back

If two quantities are directly proportional, as one quantity increases, the other quantity increases at a constant rate.

Front

What is the graph of a proportional relationship?

Back

The graph of a proportional relationship is a straight line that passes through the origin (0,0).