# How do you identify the important parts of #y= x^2 - 4x# to graph it?

##### 1 Answer

Oct 5, 2015

Vertex

Axis of symmetry

since the co-efficient of

#### Explanation:

Given -

It is a quadratic function of the form

In the given function the constant term is absent.

So we shall have it as '0'.

The presence or absence of constant term is not going to affect our answer.

Find the vertex

Vertex

Axis of symmetry

since the co-efficient of