The marketing research department for a computer company used a large city to test market the firm's new laptop. The department found that the relationship between price p (dollars per unit) and demand x (unit sold per week) was given approximately by p = 1,296 – 0. 12x² Moreover, the cost function C(x) in dollars is given by C(x) = 830 + 396x. 0 sxS 80 Graph the profit function P(x).

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