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Learn how to determine profit equation from revenue and expense functions and find maximum profit attained. Explore graphing methods to visualize profit equations and interpret zero-profit points. Algebraically solve for the price yielding maximum profit.
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2-7THE PROFIT EQUATION OBJECTIVES Determinea profit equation given the expense and revenue equations. Determinethe maximum profit and the price at which that maximum is attained.
profit P = R – E maximum profit Key Terms
Example 1 Determine the profit equation for the Picasso Paints product in Lesson 2-5. The revenue and expense functions were R = –500p2 + 30,000p E = –3,500p + 238,000
Example 2 Use a graphing calculator to draw the graph of the profit equation from Example 1. What is the maximum profit?
EXAMPLE 3 Graph the revenue, expense, and profit functions on the same coordinate plane. Interpret the zero-profit points, the maximum profit, and how the functions relate to each other.
CHECK YOUR UNDERSTANDING Must maximum profit occur at the same price as the maximum revenue?
EXAMPLE 4 Algebraically, determine the price of the Picasso Paints product that yields the maximum profit and state the maximum profit at this price.