4. Suppose the demand for a certain item is given by D(p)=-2 p² - 4p+350, where p represents the price of the item in dollars. a) Find the rate of change of demand with respect to price. b) Find and interpret the rate of change of demand when the price is $11.

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A: REFERENCE…

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A: SOLUTION:

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A: Steps and explanations are as follows:In case of any doubt, please let me know. Thank you.

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A: 1: