# What is the vertex of #y= x^2 + 12x + 9 #?

##### 1 Answer

Apr 21, 2016

putting y+27 =Y and x+6=X

we have

Vertex of this Equation

is

So the actual vertex

putting X=9 and Y=0

graph{x^2+12*x+9 [-58.53, 58.57, -29.24, 29.27]}