### Home > APCALC > Chapter 4 > Lesson 4.2.3 > Problem 4-71

4-71.

Keily put his dog on a diet! If represents pounds lost per day and

*is measured in days, what does*

'pounds lost per day' is a rate.

What does the area under a rate graph (such as a velocity graph) represent? What will it represent on Keily's graph?