Question 1019905: Find the Period, Amplitude, Phase Shift, and Vertical Shift of the function f(x)=-3cos(2x+π)-3.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Find the Period, Amplitude, Phase Shift, and Vertical Shift of the function f(x)=-3cos(2x+π)-3.
f(x) = -3cos(2(x-(-pi/2))-3
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Form:: y = acos(b(x-c))+d
a = -3 ; b = 2 ; c = pi/2 d = -3
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Period = 2pi/b = (2pi)/2 = pi
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Amp = |a| = 3
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Phase Shift = c/a = (pi/2)/-3 = -(pi/6)
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Cheers,
Stan H.
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