Profit The profit P, in thousands of dollars that a manufacturer makes is a function of the number N of items produced in a year, and the formula is
a. Express using functional notation the profit at a production level of 5 items per year, and then calculate that value.
b. Determine the two break-even points for this manufactures―that is, the two production levels at which the profit is zero.
c. Determine the maximum profit if the manufacturer can produce at most 20 items in a year.
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