1. The cost function for a commodity is given by C(x)- 200+12x+0.1x² (S) and the demand functi is p-300-0.02x ($/unit) where x - quantity (demanded and produced). (a) What is the profit function for this commodity? (b) Find the marginal profit function. (c) What is the marginal profit when x-10?

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1. The cost function for a commodity is given by C(x) - 200+12x+0.1x² (S) and the demand funct
is p-300-0.02x ($/unit) where x- quantity (demanded and produced).
(a) What is the profit function for this commodity?
(b) Find the marginal profit function.
(c) What is the marginal profit when x-10?!
(d) What does this marginal profit tell you?
(e) Find the level of demand at which profit is a maximum. Show how you do this using calculus.
(1) What is the maximum profit, and what is the selling price that realizes this profit?
Ans:
R(x)-300x-0.02x², P(x)=-0.12x² +288x-200, P'(10) - 285.6 (S), approximate increase
in profit from selling one more unit when sales are at 10 units, solving P'(x)-0 gives max at
unit.
x-1200 units, max profit - $172,600, price = 300-0.02(1200)-$276 per
Transcribed Image Text:1. The cost function for a commodity is given by C(x) - 200+12x+0.1x² (S) and the demand funct is p-300-0.02x ($/unit) where x- quantity (demanded and produced). (a) What is the profit function for this commodity? (b) Find the marginal profit function. (c) What is the marginal profit when x-10?! (d) What does this marginal profit tell you? (e) Find the level of demand at which profit is a maximum. Show how you do this using calculus. (1) What is the maximum profit, and what is the selling price that realizes this profit? Ans: R(x)-300x-0.02x², P(x)=-0.12x² +288x-200, P'(10) - 285.6 (S), approximate increase in profit from selling one more unit when sales are at 10 units, solving P'(x)-0 gives max at unit. x-1200 units, max profit - $172,600, price = 300-0.02(1200)-$276 per
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