Respuesta :

V(4,-2)

In the vertex form, the h value is the x and the k value is the y.
So if the vertex (4,-2) is also (h,k)

You can just simply replace the h and k in (x-h)^2+k.
Which gives us...
f(x)=(x-4)^2-2.

RELAXING NOICE
Relax