Question

A particular sound wave can be graphed using the function y = -3 sin x. Find the period of the function.

Answer 1

if you look at a plot of sin(x)
see google: https://www.google.com/search?client=safari&rls=en&q=plot+sin(x)&ie=UTF-8&oe=UTF-8

what is the distance between two peaks?
(note: x is in radians)

Answer 2

is it 3?

Answer 3

do you know the period of a sin in degrees? how many degrees do you go to trace out one period ?

Answer 4

im not sure

Answer 5

I guess you totally don't know about a sine wave.

it has a period of 2 pi (or 360 degrees)
https://en.wikipedia.org/wiki/Sine

Answer 6

Yea i don't really understand it. but thanks..