If I have an equation in Standard form, how do I change it to Graphing (vertex) form? How do I make: y = ax^2 + bx + c, become y = a(x-h)^2 + k Thanks in advance.

Oh gosh, I only took Algebra 1, then skipped to Geometry. Crap, I knew this equation! Here's all that I got: http://whyslopes.com/Analytic-Geometry-Functions/10_01_quadratics_graphing_in_general.html http://www.mathnstuff.com/math/spoken/here/2class/320/c32pg00.htm

Don't know if u still need any help, cause those sites looked quite confusing to me, but in general... h and k are the coordinates of the vertex of the parabola and are equal to - h = -b/(2a) k =( c-b^2)/(4a)