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 between two quantities where the ratio is not constant.

Front

What does the constant of proportionality represent?

Back

The constant of proportionality represents the factor by which one quantity is multiplied to obtain the other in a proportional relationship.

Front

If y = 19.25x, what is the constant of proportionality?

Back

The constant of proportionality is 19.25.

Front

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

Back

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

Front

What is the equation for a proportional relationship?

Back

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

Front

If Craig earns $9.25 per hour, how much does he earn for 5 hours?

Back

He earns $46.25 for 5 hours.

Front

What is the graph of a proportional relationship like?

Back

The graph of a proportional relationship is a straight line that passes through the origin.

Front

What is an example of a non-proportional relationship?

Back

An example of a non-proportional relationship is when a person earns a fixed salary plus commission.

Front

If y = 8x, what is the value of y when x = 3?

Back

When x = 3, y = 24.