AP37. The production function f(x) gives the number of units of an item that a manufacturing company can produce from x units of raw material. The company buys the raw material at price w dollars per unit and sells all it produces at a price of p dollars per unit. The quantity of raw material that maximizes profit is denoted by x. (a) Do you expect the derivative f'(x) to be positive or negative? Justify your answer. (b) Explain why the formula r(2) = pf(a)- wa gives the profit r(z) that the company earns as a function of the quantity x of raw materials that it uses. (c) Evaluate f'(x"). (d) Assuming it is nozero, is f"(x') positive or negative? (e) If the supplier of the raw materials is likely to change the price w, then it is appropriate to treat x as a function of w. Find a formula for the derivative dx'/dw and decide whether it is positive or negative. (f) If the price w goes up, should the manufacturing company buy more or less of the raw material?
AP37. The production function f(x) gives the number of units of an item that a manufacturing company can produce from x units of raw material. The company buys the raw material at price w dollars per unit and sells all it produces at a price of p dollars per unit. The quantity of raw material that maximizes profit is denoted by x. (a) Do you expect the derivative f'(x) to be positive or negative? Justify your answer. (b) Explain why the formula r(2) = pf(a)- wa gives the profit r(z) that the company earns as a function of the quantity x of raw materials that it uses. (c) Evaluate f'(x"). (d) Assuming it is nozero, is f"(x') positive or negative? (e) If the supplier of the raw materials is likely to change the price w, then it is appropriate to treat x as a function of w. Find a formula for the derivative dx'/dw and decide whether it is positive or negative. (f) If the price w goes up, should the manufacturing company buy more or less of the raw material?
Chapter3: Functions
Section3.2: Domain And Range
Problem 61SE: The cost in dollars of making x items is given by the function Cx)=10x+500. a. The fixed cost is...
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