The weekly demand function for x units of a product sold by only one firm is  p = 500 − 1/2x dollars,  and the average cost of production and sale is  C = 400 + 2x dollars. (a) Find the quantity that will maximize profit. units(b) Find the selling price at this optimal quantity.$  per unit(c) What is the maximum profit?$

Algebra for College Students
10th Edition
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter9: Polynomial And Rational Functions
Section9.4: Graphing Polynomial Functions
Problem 44PS: A company determines that its weekly profit from manufacturing and selling x units of a certain item...
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The weekly demand function for x units of a product sold by only one firm is 

p = 500 − 1/2x dollars,

 and the average cost of production and sale is 

C = 400 + 2x dollars.
(a) Find the quantity that will maximize profit.
 units

(b) Find the selling price at this optimal quantity.
$  per unit

(c) What is the maximum profit?
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