Chapter 8.4, Problem 32E

Cost and Revenue Models In Exercises 31-34, do the following.

(a) Express the cost C as a function of x, where x represents the quantity of items as given.

(b) Express the revenue Rasa function of x.

(c) Determine the value of x for which revenue equals cost.

(d) Graph the equations

$C(x)andy=R(x)$

on the same axes, and interpret the graph.

Bart runs a copying service in his home. He paid $3500 for the copier and a lifetime service contract. Each sheet of paper he uses costs $0.01, and he gets paid $0.05 per copy he makes. Let x represent the number of copies he makes.