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

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