Question

http://awesomescreenshot.com/0a62evb26d

Answer 1

you familiar with its parent graph \(y = \sin(x)\) ?

Answer 2

not at all

Answer 3

Okay, first you need to knw how \(y = \sin(x)\) looks like,
the given function is just a variation of above

Answer 4

the period of \(y = \sin (x)\) is \(2\pi\),
you knw what a "period" is, eh ?