Find the phase shift of the function.
-$$y = \cos \left( x - \frac { \pi } { 2 } \right)$$
A) $\frac { \pi } { 2 }$ units up
B) $\frac { \pi } { 2 }$ units to the left
C) $\frac { \pi } { 2 }$ units down
D) $\frac { \pi } { 2 }$ units to the right

Question

Quizplus · Accepted Answer

The phase shift of the function $y = \cos \left( x - \frac { \pi } { 2 } \right)$ is $\frac { \pi } { 2 }$ units to the right, as the expression inside the cosine function is $x - \frac{\pi}{2}$.

Find the Phase Shift of the Function y=cos⁡(x−π2)y = \cos \left( x - \frac { \pi } { 2 } \right)y=cos(x−2π​)

Find the Phase Shift of the Function $y = \cos \left( x - \frac { \pi } { 2 } \right)$