The total revenue curve of a firm is R(x) = 32·5x – 12x2 and its average cost A(x) = 1x2 – 13x + 20 + 200; where x is the firm’s output.                                   30                           x                                                             A) Derive an expression, Π (x),  for the firm’s profit function.  B) Is the rate of change of profit increasing or decreasing      when the output level of the firm is x = 10 and x = 30? c) Determine the level of output for which profit is maximized. (d). What is the maximum profit.

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ISBN:9780470458365
Author:Erwin Kreyszig
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The total revenue curve of a firm is R(x) = 32·5x – 12xand its
average cost A(x) = 1x2 – 13x + 20 + 200; where x is the firm’s output.   
                               30                           x                                                             A) Derive an expression, Π (x),  for the firm’s profit function. 

B) Is the rate of change of profit increasing or decreasing
     when the output level of the firm is x = 10 and x = 30?

c) Determine the level of output for which profit is maximized.

(d). What is the maximum profit.

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