The sales of a product S (in thousands of dollars) are given by S = 600x /

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The sales of a product S (in thousands of dollars) are given by

S = 600x / x + 40

where x is the advertising expenditure (in thousands of dollars).

(a) Find the rate of change of sales with respect to advertising expenditure.

(b) Use the second derivative to find how this rate is changing at x = 20.

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Mathematical Applications for the Management Life and Social Sciences

ISBN: 978-1305108042

11th edition

Authors: Ronald J. Harshbarger, James J. Reynolds

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Question Posted: Feb 09, 2018 06:41 AM

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The sales of a product S (in thousands of dollars) are given by S = 600x /

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S 600x x 40 a b S 48000 x 40 3 S x...View the full answer

Mathematical Applications for the Management Life and Social Sciences

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