12/3 Constant Rate y=kx

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 calculate a unit rate?

Back

To calculate a unit rate, divide the total amount of one quantity by the total amount of the other quantity.

Front

If you spend $40 on 5 pounds of concrete, what is the unit rate in dollars per pound?

Back

$8 per pound.

Front

What is the equation for a constant rate of change?

Back

The equation is y = kx, where k is the constant rate.

Front

If a cyclist travels 100 miles in 4 hours, how many miles do they travel in one hour?

Back

25 miles.

Front

What does the slope of a line represent in a graph of a constant rate?

Back

The slope represents the constant rate of change between the two quantities.

Front

If Taylor can write 10 words per minute, what is the constant rate of change?

Back

10 words per minute.

Front

What is the constant rate of change if you earn $40 for 8 hours of work?

Back

$5 per hour.

Front

What is the meaning of 'constant rate'?

Back

A constant rate means that the ratio between two quantities remains the same regardless of the amount.

Front

How can you represent a constant rate in a table?

Back

A constant rate can be represented in a table by showing equal increments in one quantity corresponding to equal increments in another.