The profit P, in thousand of dollars, that a manufacturer makes is a function of the number N of items produced in a year, and the formula is as follows. P = -0.2N2 + 3.6N - 9 (a) Express using...

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Extracted text: The profit P, in thousand of dollars, that a manufacturer makes is a function of the number N of items produced in a year, and the formula is as follows. P = -0.2N2 + 3.6N - 9 (a) Express using functional notation the profit at a production level of 4 items per year. Calculate that value. | thousand dollars (b) Determine the two break-even points for this manufacturer-that is, the two production levels at which the profit is zero. N = ](smaller value) N = ](larger value) (c) Determine the maximum profit if the manufacturer can produce at most 17 in a year. thousand dollars