OpenStax, Algebra and Trigonometry 2e §2.5 Quadratic Equations · Exercise 65 · Algebra · Quadratics

Quadratic Equations · Exercise 65

Suppose that an equation is given $p = - 2 x^{2} + 280 x - 1000,$ where $x$ represents the number of items sold at an auction and $p$ is the profit made by the business that ran the auction. How many items sold would make this profit a maximum? Solve this by graphing the expression in your graphing utility and finding the maximum using 2^nd CALC maximum. To obtain a good window for the curve, set $x$ [0,200] and $y$ [0,10000].

~11 minWritten answer · compare with the solution

OpenStax, Algebra and Trigonometry 2e · §2.5 Quadratic Equations · Exercise 65

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