Question

What is the amplitude, period and the phase shift of `y = -2 sin (4/3x)`?

Answer 1

`A=2, P=(3pi)/2, D=0`

Explanation:

Use the general sinusoidal equation y=C+A cos B(x-D) to figure out the amplitude A, the period P equals 2pi divided by the number of cycle B which is 4/3 and the phase shift is the shift in x which is 0.