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Algebra 1

Profit from a River Cruise

Algebra 1Profit from a River Cruise
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A travel company uses a quadratic function to model the profit, in dollars, that it expects to earn from selling tickets to a river cruise at dd dollars per person. The expression −d2+100d−900−d2+100d−900 defines this function.

Without graphing, find the price that would generate the maximum profit. Then, determine that maximum profit.

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