The given function is
To graph these functions, we need to have a table where we can write down each coordinated pair. So what we're gonna do is to give arbitrary values to x, we'll replace those values in g(x), to obtain a value for y.
We are going to use the following domain subset:
Let's replace each element into the function.
These results allow us to build the following table.
x y
-2 1
-1 0
0 -1
1 1
Where each pair of numbers represents a point. Now, we just graph them on the coordinated system. The image below contains the graph of the given function.