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Question
determine the amplitude, period, and phase shift of each function y= -3 cos(2x -[pi] /2)
Given that function y = Acos(Bx+C),
the amplitude is max-min=A-(-A)=2A, the period is how far from 0 to 2π, which is 2π/B,
and the phase shift is the amount of difference from 0 when x is 0, which is C.
For this problem, A=-3, B=2, and C=-π/2.
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Scott A Wilson
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Any algebraic question you've got, like linear, quadratic, exponential, etc.
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