Question 312950
{{{f(x) = 6(x - 4)^2 - 9}}}
The equation is in vertex form,
{{{f(x)=a(x-h)^2+k}}}
where (h,k) is the vertex.
(h,k)=(4,-9)
{{{ graph( 300, 300, -10, 10, -10, 10, 6(x-4)^2-9) }}}