Using 3 Points to Find Quadratic Equation in General Form

[LCKurtz]

I think that we should focus on teaching how to find the values of a, p, and q in y=a(x-p)²+q given that y(1)=0, y(3)=0, and y(0)=-6.

Wasn't that done long before this/these thread(s) want bananas? Post #6, which I think was post #2 or #3 before the threads were merged did just that.