Question

A particular sound wave can be graphed using the function y=1 sin 4x. Find the amplitude and period of the function

Answer 1

The amplitude is equivalent to the coefficient of the sine function, so:
Amplitude = 1

The time period of a Sin(x) = 2π
The time period of Sin(4x) = 2π/4 = π/2
The period is π/2

Answer 2

Amplitude=1
period= pi/2