
Concept explainers
The point at which a company’s profits equal zero is called the company’s break-even point. For Problems 43 and 44, let represent a company’s revenue, let represent the company’s costs, and let represent the number of units produced and sold each day.
a. Find the firm’s break-even point; that is, find so that .
b. Find the values of such that . This represents the number of units that the company must sell to earn a profit.

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Precalculus Enhanced with Graphing Utilities Plus MyLab Math with Pearson eText - Access Card Package (7th Edition) (Sullivan & Sullivan Precalculus Titles)
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