X< is at 1, and images with y =1-x 3 and y =-x 3 move up by one unit until x= 1, x >；; Images at 1, y = x 3- 1 and y = x 3 are moved down by one unit until x= 1, and the left and right images are handed over at x= 1. (The image of another cubic function will move down by one unit. )