by Fuentes
x -5 -4 -3 -2 -1 0 1 2 3 4 5 1 2 3 4 5 6 7 -20 0 20 40 60 80 100 120 140
x -5 -4 -3 -2 -1 0 1 2 3 4 5 1 2 3 4 5 6 7 -20 0 20 40 60 80 100 120 140 Less
