Figure shows a snapshot graph and a history graph for a wave pulse on a stretched string. They describe the same wave from two perspectives.

Select all that apply

• Option A

  the wave is travelling in positive x-direction

• Option B

  the wave is travelling in negative x-direction

• Option C

  the speed of the wave is 2 m s⁻¹

• Option D

  the peak is located at x = -6 cm at t = 0