Unformatted text preview: t weeks from the present to be x = 2 + 2 t . (a) ±ind the marginal pro²t, dP dx . (b) ±ind the time rate of change of pro²t, dP dt . (c) How fast (with respect to time) are pro²ts changing when t = 2? (4) ±or each function, ²nd the values of x where f ( x ) has a possible relative maximum or minimum point. Use the second derivative to determine the nature of the function at these points. (a) f ( x ) = 1x e x (b) f ( x ) = 10e3 x6 x...
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 Spring '08
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 Calculus, Derivative, complete solutions, exam book, Test 3I

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