# Example 3

- Author:
- Walch Education

- Topic:
- Algebra

The Computer Corporation is trying to determine the number of computers that it must sell
to break even with revenues and expenses. Then it wants to determine when it will make a profit. The expenses are modeled by the function

*f*(*x*) = 500*x*+ 31,000, where*f*(*x*) is the cost of making*x*computers. The revenue is represented by the function*g*(*x*) = 29,000(1.04)*x*, where*g*(*x*) is revenue in dollars after*x*number of computers sold. How many computers should the Computer Corporation make to earn a profit? Support your answer with a graph.This applet is provided by Walch Education as supplemental material for their mathematics programs. Visit www.walch.com for more information.