Finding quadratic function from two points and known max value

08312017, 05:31 PM
Post: #6




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  08312017, 12:57 PM
RE: Finding quadratic function from two points and known max value  grsbanks  08312017, 01:03 PM
RE: Finding quadratic function from two points and known max value  Dave Britten  08312017, 01:09 PM
RE: Finding quadratic function from two points and known max value  Nigel (UK)  08312017, 02:46 PM
RE: Finding quadratic function from two points and known max value  Dave Britten  08312017, 05:02 PM
RE: Finding quadratic function from two points and known max value  Dave Britten  08312017 05:31 PM

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