Question
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Price (x) Profit (y)
16.50
349
20.50
490
26.75 599
38.00 590
45.25
468
48.00 378
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Company X tried selling widgets at various prices to see how much profit they would make. The
following table shows the widget selling price, x, and the total profit earned at that price, y. Write
a quadratic regression equation for this set of data, rounding all coefficients to the nearest tenth.
Using this equation, find the profit, to the nearest dollar, for a selling price of 11.25 dollars.