# How do you find the axis of symmetry and vertex point of the function: #y = x^2 − 1#?

##### 1 Answer

Oct 18, 2015

Rewrite in explicit vertex form and recognize it as a parabola in standard position.

Vertex:

#### Explanation:

Vertex form of a parabola in standard position:

can be written in explicit vertex form as

In standard position the axis of symmetry is a vertical line through the vertex; i.e.