1. The problem statement, all variables and given/known data The figure shows a wave on a string moving to the right. For each of the points indicated on the string, A-F, state whether it is moving: I. upward, II. downward, III. instantaneously at rest. 2. Relevant equations N/A 3. The attempt at a solution I got A and D as (III), B and C as (II), and E F as (I). According to the answer, my B-C and E-F is mixed up, but I'm not sure why. How is it moving upward at B? Downward at E? I'm sure I'm just missing something simple.