A traveling wave propagates according to the expression y = (4.0 cm) sin (2.0x 3.0t), where x

Question:

A traveling wave propagates according to the expression y = (4.0 cm) sin (2.0x ─ 3.0t), where x is in centimeters and t is in seconds. Determine
(a) The amplitude,
(b) The wavelength,
(c) The frequency,
(d) The period, and
(e) The direction of travel of the wave. The wave function for a traveling wave on a taut string is (in SI units)