Unit Rates/Constant of Proportionality

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together. It expresses how much of one quantity corresponds to one unit of another quantity.

Front

How do you find the constant of proportionality from a table?

Back

To find the constant of proportionality, divide the value of y by the value of x for any pair of corresponding values in the table.

Front

What is the constant of proportionality in the equation y = 11x?

Back

The constant of proportionality is 11.

Front

If 5 apples cost $10, what is the unit rate in dollars per apple?

Back

The unit rate is $2 per apple.

Front

What does it mean if two quantities are proportional?

Back

Two quantities are proportional if they maintain a constant ratio or unit rate.

Front

If a car travels 300 miles in 5 hours, what is the unit rate in miles per hour?

Back

The unit rate is 60 miles per hour.

Front

What is the formula to calculate the unit rate?

Back

Unit Rate = Total Quantity / Number of Units.

Front

If a recipe requires 4 cups of flour for 2 cakes, what is the unit rate of flour per cake?

Back

The unit rate is 2 cups of flour per cake.

Front

How can you express the constant of proportionality in a graph?

Back

In a graph, the constant of proportionality is represented by the slope of the line.

Front

What is the unit rate if 12 oranges cost $6?

Back

The unit rate is $0.50 per orange.