A wave traveling along a string is given by y(x, t) = 2 sin (4t + 10x)

Question:

A wave traveling along a string is given by y(x, t) = 2 sin (4πt + 10πx) (cm) where x is the distance along the string in meters and y is the vertical displacement. Determine:
(a) Te direction of wave travel,
(b) Te reference phase 0,
(c) The frequency,
(d) The wavelength, and
(e) The phase velocity.