Which function's graph is shown below?
A. y = sinx
B. y= cosx
C. y= -cosx
D. y = -sinx
Note: Screenshot above regarded to this question... also, I believe the answer is A. y = sinx
That is a graph of y= cos x at 0 it is equal to one.....it is sinusoidal and the period is 2pi (it appears)