Question 32516
You don't get overlappiing lines because the three
conditions for "x" will not allow it.
Graph a horizontal line at y=-1 for all x that are strictly <-1
Graph a horizontal line at y=1 for all x that are between -1 and +1
Graph a horizontal line at y=-1 for all x that are strictly >+1
There should be no overlapping of these line pieces.
Cheers,
Stan H.