If there is a local minimum of a given equation, how do you find the value of the discriminant at that point?

Question

anonymous · Answer

is the local minimum at zero?

anonymous · Answer

no

anonymous · Answer

Do you know the formula for find discriminant?

anonymous · Answer

no

anonymous · Answer

it is sqrt(b^2-4ac)

anonymous · Answer

what's the three space equivalent of that?

anonymous · Answer

if discriminant is positive it means you have two more more solution
                                                  0 if only one sol
negative if no solution(imaginary number)

anonymous · Answer

couldn't the discriminant always be either positive or negative if it is not 0?

anonymous · Answer

yes

anonymous · Answer

this is for discriminate formula for (I think) multi variable function

anonymous · Answer

Fxx(a,b)*Fyy(a,b)-Fxy(a,b)^2

anonymous · Answer

Thank you!  You're right, I think.  In any case, that formula worked.