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12-67.
  1. Write a possible equation for the graphs shown below. Then state the amplitude and period of the function. Describe how the graph relates to the parent function. Homework Help ✎

    1. parent: y = sin(x)

    2. parent: y = cos(x)

Look at the graph to determine the amplitude, period, phase shift, and vertical shift.

Use the information in y = a sin b(x + c) + d