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Mathematics 18 Online
OpenStudy (anonymous):

Find a quadratic model giving W as a fuction of I. The values given are as follows in (W, I) form: (1, 3.1), (2, 21.9), (4, 96.2), (5, 150.8), (6, 218), (8, 387.9)

Directrix (directrix):

If you are doing quadratic regression, check out the calculator at the link with URL http://tinyurl.com/7vlhuo4

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