Chapter 14.2, Problem 44E

To determine

To calculate: The area between the graphs of $I\left(t\right)$ and $E\left(t\right)$ for $0\le t\le 3$ and its interpretation, if the annual income is provided by $I\left(t\right)=50,000+2,000t$ $\left(0\le t\le 3\right)$ dollars per year and the annual expense is provided by $E\left(t\right)=45,000+1,500t$ $\left(0\le t\le 3\right)$ dollars per day.