Question
The demand for a certain commodity is D ( x ) = 500 e -0.2x units per month when the market price is x dollars
The demand for a certain commodity is
D(x) = 500 e-0.2x
units per month when the market price isxdollars per unit.
(a)At what rate is the consumer expenditureE(x) =xD(x) changing with respect to pricexwhen the price is equal to $60 dollars?
(b)At what price does consumer expenditure stop increasing and begin to decrease?(c)At what price does therateof consumer expenditure begin to increase?
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Calculus For Business, Economics And The Social And Life Sciences
Authors: Laurence Hoffmann, Gerald Bradley, David Sobecki, Michael Price
11th Brief Edition
978-0073532387, 007353238X
