Slope, Rate of Change, Unit Rate Review for 2a: SA

Front

What is the definition of 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 the unit rate?

Back

To calculate the unit rate, divide the total quantity of one item by the total quantity of another item, ensuring the second quantity is one.

Front

What is the unit rate for Train A if it travels 79 miles in 1 hour?

Back

79 miles per hour.

Front

What is the cost per pound if a potato salad costs $2.50 for 1 pound?

Back

$2.50 per pound.

Front

If Francis worked 14 hours and earned $196, how much did he earn per hour?

Back

$14.00 per hour.

Front

If Bicycle Rider A has a unit rate of 30 miles per hour and Bicycle Rider B has a unit rate of 25 miles per hour, who is faster?

Back

Bicycle Rider A is faster.

Front

What is the formula for calculating the rate of change?

Back

Rate of change = (Change in value) / (Change in time or quantity).

Front

If Mark charges $60 for 2 hours and $120 for 6 hours, what is the rate of change in his pricing?

Back

$15 per hour.

Front

What does a slope represent in a graph?

Back

The slope represents the rate of change between the x and y values in a linear relationship.

Front

How do you find the slope from two points (x1, y1) and (x2, y2)?

Back

Slope (m) = (y2 - y1) / (x2 - x1).