What do you think the two inequalities infer, what points on the x-y graph meet the critera? Hint: Begin by sketching Y < x, and Y > -x as two functions.
Plotting which points exactly? You can plot the two functions by picking values for x and deteremining y. If you're talking about plotting the points such that Y < x, and Y > -x, then you need to shade the region that meets the criteria. You wouldn't graph each point separately, as there are infinitely many.