# How do you identify the important parts of #Y = x^2 - 4x-5 # to graph it?

##### 1 Answer

Oct 5, 2015

Its vertex is

Axis of symmetry

The co-efficient of

It has a minimum. graph

#### Explanation:

It is a quadratic equation.

Find the vertex

At

Its vertex is

Axis of symmetry

The co-efficient of

It has a minimum.

Take three points on either side of

plot all the points. Join them with a smooth line

x: y

-1: 0

0: -5

1: -8

2; -9

3: -8

4: :-5

5; 0

graph{x^2-4x-5 [-22.8, 22.83, -11.4, 11.4]}