3. 
Three traveling sinusoidal waves are on identical strings,
with the same tension. The mathematical forms of the waves are y_{1}(x,t)
= y_{m}sin(3x – 6t), y_{2}(x,t)
= y_{m}sin(4x – 8t), and y_{3}(x,t)
= y_{m}sin(6x – 12t), where x is
in meters and t is in seconds. Match each mathematical form to
the appropriate graph below.
