Question

For the nondegenerate quadratic equation Ax^2+Bxy+Cy^2+Dx+Ey+F=0, explain what each of the following tells you about the graph of the equation.

a) B^2-4AC=0

b) B^2-4AC>0

c) B^2-4AC<0

d) B is not equal to 0

Answer 1

I have no idea what they even mean?

Answer 2

http://en.wikipedia.org/wiki/Discriminant#Discriminant_of_a_conic_section

Answer 3

woooooooooooow! thanks sooooooo much!