# demand

• Feb 28th 2008, 04:54 PM
ArmiAldi
demand
Suppose the demand for a certain item is given by D(p)=-4p^2+3p+5, where p represents the price of item. Find D'(p), the rate of change of demand with respect to price. Thanks(Handshake)
• Feb 28th 2008, 04:56 PM
TheEmptySet
Quote:

Originally Posted by ArmiAldi
Suppose the demand for a certain item is given by D(p)=-4p^2+3p+5, where p represents the price of item. Find D'(p), the rate of change of demand with respect to price. Thanks(Handshake)

Taking the Derivatve gives.

$D'(p)=-8p+3$