<PRE><B>Question 405669</B>
 Calculate the amplitude, period, phase shift, and use the information to sketch one full cycle of the graph of the equation f(t) = 0.2 cos (pi/12 t - 7pi/12), which is used in predicting the height of ocean tidal components. 
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If y = a*sin(bx+c)+d
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amp = |a| = 0.2
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period = (2pi)/b = (2pi)/(pi/12) = 24
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phase shift = -c/b =  -(-7pi/12)/(pi/12) = 7
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Cheers,
Stan H.
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