Which of the following equations represents a wave

A progressive wave of frequency 500 Hz is travelling with a velocity of 360 m/s. How far apart are two points 60^@ out of phase ? (ii)Does the speed of a plane-progressive wave depend on the amplitude ? (iii)The equation of a progressive wave is represented by Y=A sin^2 (kx-omegat) . Find its amplitude and frequency (iv)Which of the following equations represents a wave travelling along positive y-axis ? (a)x=5 sin (2y-6t) (b) y=6sin (7x-5t) (c ) y=10 sin (6y) cos (8t)

Which of the following equation represents a wave?

Which of the following equations represents as wave travelling along Y-axis?

Which of the following equations represents as wave travelling along Y-axis?

Which of the following equations represents as wave travelling along Y-axis?

Which of the following equations represents a travelling wave?

Which of the following equation reprsents a wave ?