DISCUSS Sinusoidal Curves The graph of y = sin x is the same as the graph of y = cos x shifted to the right units. So the sine curve, is also at the same time a cosine curve: . In fact, any sine curve is also a cosine curve with a different horizontal shift, and any cosine curve is also a sine curve. Sine and cosine curves are collectively referred to as sinusoidal. For the curve whose graph is shown, find all possible ways of expressing it as a sine curve, or as a cosine curve, . Explain why you think you have found all possible choices for a and b in each case.
