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The demand for a particular commodity is given by D(x) = -35x + 200; that is, x units will be demanded at a price of
The demand for a particular commodity is given by D(x) = -35x + 200; that is, x units will be demanded at a price of p = D(x) dollars per unit.
Consumer expenditure E(x) is the total amount of money consumers pay to buy x units.Consumer Expenditure E as a function of x is expressed as:
E(x) = x * D(x)
where
x(-35x+200)
simplified as
-35x^2 + 200x
Find the average rate of change in consumer expenditure as x changes from x = 4 to x = 5.
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