Question

Help please! What is the phase shift of this graph? Click on attached picture to view
a. pi/4 to the left
b. pi/4 to the right
c. pi/2 to the right
d. pi/2 to the left

Answer 1

have no idea how to solve this :(

Answer 2

If you start with a sin wave, and shift it to the left, it would look like your picture
pi/2 would be too much (the peak would be on the y axis)
so it looks roughly like pi/4 to the left

Answer 3

Thank you for your input and help