Graph y=x^2-6x-16 apex

Complete the square on the right side of the equation (x + 3) ^2 - 25

Use the vertex form, y = a (x-h) ^2+k to determine the values of a, h, and k.

a = 1

h = - 3

k = - 25

The vertex, (h, k) is (-3, - 25)