# What is the vertex form of #y= 2x^2+4x-30 #?

##### 1 Answer

#### Explanation:

The vertex form

Our question

*We got different approaches for getting to the vertex form.
One is to use the formula for #x#coordinate of the vertex and then using the value to find the #y# coordinate and write the given equation in the vertex form.*

We are going to use a different approach. Let us use completing the square.

We would first write the given equation in the following way.

Now take the