Posted by **Marie** on Friday, February 4, 2011 at 12:41pm.

The demand for Sportsman 5 X 7 tents is given by the following function where p is measured in dollars and x is measured in units of a thousand. (Round your answers to three decimal places.)

p = f(x) = −0.1x^2 − x + 40

(a) Find the average rate of change in the unit price of a tent if the quantity demanded is between the following intervals.

between 5700 and 5750 tents= $ per 1000 tents

between 5700 and 5710 tents = $ per 1000 tents

(b) What is the rate of change of the unit price if the quantity demanded is 5700?

$ per 1000 tents

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