ln this chapter, you learned about the behavior of functions and their average rates of ch...

ln this chapter, you learned about the behavior of functions and their average rates of change. This activity will allow you to investigate these concepts numerically,graphically, and verbally.

To raise money for their sorority’s service project, Kari and Keisha decided to sell cookies outside the student center. After the first week of sales, they examined their sales record and made a chart that includes the number of cookies sold per day along with the change from the previous day. Complete a chart like the one shown for each of the situations described. Then make a plot that shows the day on the x-axis and the number of cookies sold on the y-axis. Describe in words how each graph looks.

Problem

Cookie sales decreased at a constant rate.