Question

Which function has a phase shift of 5/2?
A) y=csc5/2X
B) y=5/2cosX
C) y=-5/2sin(X+5/2)
D) y=-5/2tan(X-5/2)

Answer 1

option C

Answer 2

both C and D

Answer 3

nope phase shift is negative that when you put it in the equation it becomes positive , check the formula

Answer 4

Look at the graphs of C and D, then compare the two to their un-phased versions. From this it obvious they are both phase shifted. phase shifting can be negative or positive.