Two traveling sinusoidal waves are described by the wave functions

y$1=5\mathrm{.}25$ sin $[(4\mathrm{.}05$x $1245$t$)]$y$2=5\mathrm{.}25$ sin $[(4\mathrm{.}05$x $1245$t $0\mathrm{.}250)]$

where x$,$ y$1,$ and y$2$ are in meters and t is in seconds.