Proportional Relationships

Front

What is a unit rate?

Back

A unit rate is a rate in which the unit in the denominator is 1.

Front

Write the equation for the relationship where y is three times x.

Back

y = 3x

Front

What is the equation for the relationship where y is five times x?

Back

y = 5x

Front

In the equation y = 14x, what is the constant of proportionality?

Back

14

Front

What is the unit rate if the rate is 30 laps for 10 minutes?

Back

3 laps per minute

Front

If y = kx, what does k represent?

Back

k represents the constant of proportionality.

Front

How do you find the unit rate from a ratio?

Back

Divide the numerator by the denominator.

Front

What is the relationship between proportional relationships and graphs?

Back

Proportional relationships graph as straight lines that pass through the origin.

Front

If a recipe requires 2 cups of flour for every 3 cups of sugar, what is the unit rate of flour to sugar?

Back

The unit rate is 2/3 cups of flour per cup of sugar.

Front

What does it mean if two quantities are proportional?

Back

It means that as one quantity changes, the other quantity changes at a constant rate.