# How do you write the Vertex form equation of the parabola y = x^2 -12?

##### 1 Answer
Mar 15, 2016

In strict vertex form the equation is:

$y = 1 {\left(x - 0\right)}^{2} + \left(- 12\right)$

#### Explanation:

Vertex form is:

$y = a {\left(x - h\right)}^{2} + k$

where $\left(h , k\right)$ is the vertex and $a$ the multiplier.

In our case $\left(h , k\right) = \left(0 , - 12\right)$, $a = 1$ and we can write:

$y = 1 {\left(x - 0\right)}^{2} + \left(- 12\right)$