Solve the Problem $p$ And the Quantity $x$ Sold of a Certain Product Obey the Demand Equation

question 138

Multiple Choice

Solve the problem.
-The price $p$ and the quantity $x$ sold of a certain product obey the demand equation
$$p = - \frac { 1 } { 4 } x + 120,0 \leq x \leq 480 .$$
What price should the company charge to maximize revenue?

• A) \(\$ 72\)
• B) \(\$ 90\)
• C) \(\$ 60\)
• D) \(\$ 30\)

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