Question

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What is the amplitude, period, and phase shift of f(x) = −3 cos(4x + π) + 6?

A. amplitude = 3; period = pi over two; phase shift: x = negative pi over four

B. amplitude = −3; period = pi over two; phase shift: x = pi over four

C. amplitude = −3; period = negative pi over two; phase shift: x = negative pi over four

D. amplitude = 3; period = 2π; phase shift: x = negative pi over four

Answer 1

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