Calculate the average rate of change from 20 to 40 minutes.
A rocket is 1.5 miles above the Earth in 20 seconds and is 8 miles above the Earth in 2 minutes. What is the rocket's rate of change in miles per second?
The Jamison family kept a log of the distance they traveled during a trip, as represented by the graph below. During which interval was their average speed the greatest?
The table below shows the snowfall in a north-eastern city in inches for the first week in January.
Find the average rate of change in the number of inches of snowfall from January 8 to January 11.