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Find the Phase Shift of the Function $y = - 5 \cos \left( x + \frac { \pi } { 4 } \right)$

Question 57

Multiple Choice

Find the phase shift of the function.
- $y = - 5 \cos \left( x + \frac { \pi } { 4 } \right)$

A) $\frac { \pi } { 4 }$ units to the right
B) 4 units up
C) 4 units down
D) $\frac { \pi } { 4 }$ units to the left

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