# Question #e1123

##### 1 Answer

graph{x^2 - 5 [-15.8, 15.82, -7.9, 7.9]}

#### Explanation:

1) The key to graphing functions is to look at what I call the "mother function". In this case, the mother function is simply

2) The graph of

3) Now we also have

If it was, let's say, **up**

**OR**

You can graph it by plotting points which in my opinion takes unnecessary time, but here is how you do it:

1) write your equation

2) Plug in different values for

For example, plugging

#y = 0^2 - 5#

So your

Plugging

#y = (-3)^2 - 5#

which equals

3) but even with plotting points, the key is that you still need to know what your "mother functions" look like.

The graph of

Hope it helped (c: