# How do you find the vertex of a parabola #g(x) = x^2 - 4x + 2#?

##### 1 Answer

Jun 28, 2015

I found (coordinates of the vertex):

#### Explanation:

You have two main ways to find the coordinates of the vertex:

1] your parabola is in the form

Where:

The coordinates of the vertex are then:

2] Use the derivative.

At the vertex the derivative of your function must be ZERO;

So:

derivative

use this value into your original function to find