Unit 3 - Objective 3 - Graphs of y = a sin (bx + c) and y = a cos (bx + c)
Quick Review

The phase shift is the amount that the graph is shifted to the right or to the left. The graph is shifted when a constant is added to or subtracted from the angle. The phase shift for y = A sin (Bx + c) or y = A cos (Bx + c) is found when Bx + c = 0. "Phase shift" is where the cycle starts and "phase shift + period" is where that cycle ends.


Example 1

y = sin (2x + pi/2)
amplitude = |1| = 1
period = = pi

To find the phase shift set:






Example 2






Example 3






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