Trigonometry Transformations of Trigonometric Graphs Transformations of the Cosine Graph
Phase Shift Concepts 1

|  |  | Definition |  |
. |
If y = A· cosbx and b is nonzero number, then for any real number c the phase shift, s, of the graph of the function y = A· cos(bx + c) respecting to the graph of function y = A· cos bx is defined to be . The shift is to the left if is negative, and to the right if is positive.

The shift is to the right. | The shift is to the left.

Copyright © 1998-2001 MathAid, LLC. All rights reserved.