Question

Medal and fan for anyone that can help me!

For the function
y = 5 sin x - 2 cos (2x + pi/3 )

Describe the changes you would expect to occur if the phase shift is removed from the function. Explain why you would expect these changes.

Answer 1

If you are wondering what the graph looks like with and without the phase shift:
http://imgur.com/a/oZW5L
(Blue is without)
(Black is with)
I just don't know how to explain and justify that well enough.

Answer 2

Phase shift describes how far horizontally the function moves L to R.. it is -c/b if y = A sin(Bx + C) + D .
soo... removing the phase shift from the equation will give you
y=5sin(x)cos(x).
The function will shift horizontally without the phase shift.