Suppose that the demand for x units of a product is x = 9,000 – 90p where p dollars is the price per unit. Then the consumer expenditure for the product is E(p) = px = p(9,000 – 90p) = 9,000p – 90p². What is the instantaneous rate of change of consumer expenditure with respect to price at the following values? (а) any price p (b) р%3D 5 (c) p = 40

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Exponential Growth Model

The relation that represents an exponential function is: