Mathematics, 05.07.2019 21:30 cheergirl2133

Suppose customers in a hardware store are willing to buy n(p) boxes of nails at p dollars per box, as given by the following function.
n(p) = 80 - 4p^2 ; 1 < = p < = 4.
find the average rate of change in the number of boxes of nails that customers are willing to buy (demand) for a change in price from $2 to $3.
the average rate of change of demand for a change in price from $2 to $3 is boxes per dollar.
(type an integer or a decimal.)
i know the answer (-20) but i am not sure how to get it. can you ?

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Suppose customers in a hardware store are willing to buy n(p) boxes of nails at p dollars per box, a...