Proportional Relationships

Front

What is a proportional graph?

Back

A proportional graph is a straight line that passes through the origin.

Front

Which equation does NOT represent a proportional relationship?

Back

y = 5x - 7

Front

What describes how many units of the first type of quantity corresponds to one unit of the second type of quantity?

Back

Unit rate.

Front

What is the equation y=kx for the table if k=3?

Back

y=3x

Front

If you travel 150 miles on 5 gallons, how far did you travel per gallon?

Back

30 miles.

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together.

Front

How do you determine if a relationship is proportional?

Back

A relationship is proportional if it can be represented by a straight line through the origin on a graph.

Front

What is the constant of proportionality?

Back

The constant of proportionality is the ratio of one quantity to another when the two quantities are proportional.

Front

If y = kx, what does k represent?

Back

k represents the constant of proportionality.

Front

What is the ratio of 4 to 8?

Back

The ratio of 4 to 8 is 1:2.