The total revenue curve of a firm is R(q) = 40q − 12q2 and its average cost A(q) =1/30q2 − 12.85q + 20 +400/q, where q is the firms output. Is the rate of change of profit increasing or decreasing when the ouput level of the firm is 10 units? Determine the level of output for which the firms profit is maximized. What is the firm's maximum profit?

Microeconomic Theory
12th Edition
ISBN:9781337517942
Author:NICHOLSON
Publisher:NICHOLSON
Chapter11: Profit Maximization
Section: Chapter Questions
Problem 11.4P
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The total revenue curve of a firm is R(q) = 40q − 12q2

and its average cost A(q) =1/30q2 − 12.85q + 20 +400/q, where q is the firms output.

Is the rate of change of profit increasing or decreasing when the ouput level of the firm is 10 units?

Determine the level of output for which the firms profit is maximized.

What is the firm's maximum profit?

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