Current Attempt in Progress

A transverse sinusoidal wave is moving along a string in the positive direction of an x axis with a speed of $85$m$//$s$.$ At t$=0,$ the string particle at x$=0$ has a transverse displacement of $4\mathrm{.}4$ cm from its equilibrium position and is not moving. The maximum transverse speed of the string particle at x$=0$ is $17$m$//$s$.($ a$)$ What is the frequency of the wave? $($b$)$ What is the wavelength of the wave? if the wave equation is of the form y$=($x$,$t$)=$ ym$*$sin$($kx$(+/-)$wt$+$phi$),$ what are ym$,$ k$,$ w$,$ phi, and the correct choice of sign in front of w$?$