Cost, Revenue, and Profit: the marketing department of a company estimates that the demand for a color scanner is p=100 - 0.0001x, where p is the price per scanner and x is the number of scanners. The cost of producing x scanners is C = 350,000 + 30x and the profit for producing and selling x scanners is P = R - C = xp - C. Use a graphing utility to graph the profit function and estimate the number of scanners that would produce a maximum profit.