Find the discriminant. Tell which conic section the graph will be.
3x^2 + 12 xy + 9y^2 + 7x -2y - 100
D = B^2 - 4AC = 144 - 4*3*9 = 36
Surely you can now determine the section.
3x^2 + 12 xy + 9y^2 + 7x -2y - 100
Surely you can now determine the section.