A general second order polynomial:

A*x^2+B*x*y+C*y^2+D*x+E*y+F=0

A=slider([-2,2])

B=slider([-2,2])

C=slider([-2,2])

D=slider([-2,2])

E=slider([-2,2])

F=slider([-2,2])

Graph of the formula

This file was created by Graphing Calculator 4.0.
Visit Pacific Tech to download the helper application to view and edit these equations live.