# Standard form to vertex form??

##### 2 Answers

Complete the square

#### Explanation:

We want to go from y intercept form

So take the example of

We need to factorise the co-efficient out from the

We want to follow this rule

or

We know that the

So we just need

so

Now we can add the

Now we want to make the

Simply the equation

Now we have the result in standard form

General vertex form of a quadratic function:

In this formula,

To proceed, first find

Next, find

Example: Transform to vertex form -->

x-coordinate of vertex:

y-coordinate of vertex:

Vertex form: