Homework Help: math

Posted by Anonymous on Friday, November 20, 2009 at 11:09pm.

A quadratic function has its vertex at the point (-9,3). The function passes through the point (2,-1). Find the quadratic and linear coefficients and the constant term of the function.

math - Reiny, Friday, November 20, 2009 at 11:48pm
let the function be
y = a(x+9)^2 + 3

sub in (2,-1) to find a , and you are done.

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