I did not know word had a graphing package? I think you mean graph in excel and paste such charts into Word.

This makes no sense.

Most of these are in intercept form. All you need to do is find the x-intercept by making y = 0 and then find the y-intercept by making x = 0.

Here's an example.

x=0:

This means you have a point (0,1)

y=0:

This means you have a point

Now join the points and find the required region.