Suppose that the weekly sales volume y (in thousands of units sold) depends on the price per unit (in dollars) of the product according to the following formu y = 30(3p + 1)-2/5, p > 0 dy (a) Find dp dy dp What is the rate of change in sales volume when the price is $21? (Round your answer to three decimal places.) ápp = 21 (b) Interpret your answer to part (a). (Round your answer to the nearest whole number.) If the price increases $1, sales volume will decrease by about units. Need Help? Read It

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Exponential Growth Model

The relation that represents an exponential function is: