Question

What is the equation of the following graph?

Answer 1

just by looking at it, u can say that its a sin/cos graph
next, to write the equation, u need to figure out its period and amplitude

Answer 2

okay

Answer 3

how do i do that

Answer 4

period of sin is 2pi right ?

Answer 5

to find period, u need to look at x axis. pick any two same points on the wave, and find the distance between them

Answer 6

that wasnt phrased well, but u knw how to compute the period, dont u ? :)

Answer 7

1) It is impossible to tell. There is not EVER enough precision in a chart like this to know for SURE. You must MAKE and DISCLOSE any assumptions you make.

2) There could be multiple answers. \(\sin(x) = \cos(\pi/2 - x)\), right?