The wave function for a traveling wave on a taut string is (in SI units) y(x, t)

Question:

The wave function for a traveling wave on a taut string is (in SI units) y(x, t) = (0.350 m) sin (10πt ─ 3πx + π/4)
(a) What are the speed and direction of travel of the wave?
(b) What is the vertical position of an element of the string at t = 0, x = 0.100 m?
(c) What are the wavelength and frequency of the wave?
(d) What is the maximum magnitude of the transverse speed of the string?