Given f(x)=AcosB(x-C)+D, changing which parameter, A, B, C, or D, will affect the phase shift of the function? How will this affect the position of the graph?

Answer 1

The function should be written:

f(x) = A sin (Bx - C) + D

The phase shift is C / B

Answer 2

If f(x)=AcosB(x-C)+D, parameter C will affect the phase shift. If C is positive, the graph will shift to the right. If C is negative, the graph will shift to the left.