Finding quadratic function from two points and known max value
08-31-2017, 05:31 PM
Post: #6
 Dave Britten Senior Member Posts: 2,321 Joined: Dec 2013
RE: Finding quadratic function from two points and known max value
Yup, right on the money. Just find b with "b = (x2 * sqrt((c - y1)/(c - y2)) + x1) / (sqrt((c - y1)/(c - y2)) + 1)", then find a with "a = (c - y1)/(x1 - b)^2". Then you've got your a, b, and c for the vertex form, and you can calculate y values. Thanks Nigel.
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 Messages In This Thread Finding quadratic function from two points and known max value - Dave Britten - 08-31-2017, 12:57 PM RE: Finding quadratic function from two points and known max value - grsbanks - 08-31-2017, 01:03 PM RE: Finding quadratic function from two points and known max value - Dave Britten - 08-31-2017, 01:09 PM RE: Finding quadratic function from two points and known max value - Nigel (UK) - 08-31-2017, 02:46 PM RE: Finding quadratic function from two points and known max value - Dave Britten - 08-31-2017, 05:02 PM RE: Finding quadratic function from two points and known max value - Dave Britten - 08-31-2017 05:31 PM

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