Chapter 3.3, Problem 34E

Business Work the following problems. (See Example 7.)

The owners of a parking lot have determined that their weekly revenue and cost in dollars are given by $R\left(x\right)=80x$ and $C\left(x\right)=50x+2400,$ where x is the number of long-term parkers.

(a) Find the break-even point.

(b) Graph $R\left(x\right)$ and $C\left(x\right)$ on the same axes.

(c) From the graph, estimate the revenue and cost when there are 60 long-term parkers.