What is the snapshot graph of this wave at t = 0 s ? (Figure 1) shows a history graph at x = 2 m of a wave y (cm) moving to the right at 1 m/s. 1- O x(cm) -4-3-2-1 1 2 3 4 y (cm) 1. O x(cm) -2-1 1 2 3 4 5 6 Figure