Question

PLS HELP!!!

An ice cream truck sells ice cream between 2 p.m. and 10 p.m. each night in the summer. At the end of the night, the driver calculates his profits and makes a graph to analyze the data. What is the average rate of change for the data from the 5th hour to the 8th hour? Be sure to include the correct units of measurement.


7 hours

−7 dollars per hour per hour

21 dollars

−21 dollars per hour per hour

Answer 1

−7 dollars per hour per hour

Step-by-step explanation:

took test

Answer 2

`\large\boxed{-7\text{ }dollars\text{ }per\text{ }hour}`

Step-by-step explanation:

The average rate of change is the ratio of the change in the dependent variable (Money Earned) to the change in the independent variable (Hour).

Thus, the average rate of change for the data from the 5th hour to the 8th hour is calculated using the points (5, 96) and (8, 75) from the graph. This is, what happens in the middle does not affect the average rate of change.

`Rate\text{ }of\text{ }change=(\$75-\$96)/(8hour-5hour)`

`Rate\text{ }of\text{ }change=(-\$21)/(3hour)=-7\text{ }dollars\text{ }per\text{ }hour`