Find the amplitude, period, a phase shift and the mean of the following sinusoidal functions. (a) y=sin(5x-) +6 amplitude period phase shift mean (b) y=7 sin(x)-4 amplitude period phase shift mean (c) y=4 sin(x+2.3) + 1.5 amplitude period phase shift mean (d) y = = 5.4(sin(2x-3) - 13.8)