These number lines have different scales: -------------------------- -4 -3 -2 -1 0 1 2 3 4 ------------------------------------------ -8 -6 -4 -2 0 2 4 6 8 ------------------------------------------- -25 -20 -15 -10 -5 0 5 10 15 20 25 ----------------------------------------------------- -3000 -2000 -1000 0 1000 2000 3000 Edwin