- #1
smashbrohamme
- 97
- 1
Find the phase shift of a function.
Y=-5sin(x-pie/2)
The Phase shift is (pie/2)/1 which equals to pie/2. The correct answer is units to the right though..which is where I need clarification on.
My book said if phi is less than 0, it is too the left.. being -pie/2 wouldn't this indicate to the left?
Another example.
y=4cos(x+pie/2) once again phase shift is pie/2...but it is units to the left...units to left indicates phi...which is pie in this case..is negative...how is that possible?
It is easy to remember if it has a plus sign..it is units to the left...
negative sign ends up being units to the right...I just don't understand and if I don't truly understand than I won't remember it long term.
Thanks for your help.
Y=-5sin(x-pie/2)
The Phase shift is (pie/2)/1 which equals to pie/2. The correct answer is units to the right though..which is where I need clarification on.
My book said if phi is less than 0, it is too the left.. being -pie/2 wouldn't this indicate to the left?
Another example.
y=4cos(x+pie/2) once again phase shift is pie/2...but it is units to the left...units to left indicates phi...which is pie in this case..is negative...how is that possible?
It is easy to remember if it has a plus sign..it is units to the left...
negative sign ends up being units to the right...I just don't understand and if I don't truly understand than I won't remember it long term.
Thanks for your help.