Quadratic functions

Question

What is the vertex of the parabola 

f(x)=-3x²-12x+2?

Answer 1

The vertex of a quadratic equation is (h,k) where h=-b/2a.  Since a=-3,b=-12 h=-2.  You would then substitute -2 in for x since h is the x value of the coordinate pair.  When you do this you get k=14 so the vertex is the coordinate pair (-2,14).