Anonymous
Anonymous asked in Education & ReferenceHomework Help · 8 years ago

Determine the amplitude, period, and phase shift?

Determine the amplitude, period, and phase shift of

y= -2cos(πx-3)

With an explanation cause I'm totally lost! :)

1 Answer

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  • 8 years ago
    Best Answer

    y=Acos(B(m-C)+d

    A= Amplitude

    C = Phase shift

    and some extra info for you

    period = (2pi)/b

    principal axis : y=d

    you need to factor out (pix-3) to get in the B(m-c) format

    factor out pi

    Pi(x-(3/pi))

    also its the same for sin.

    Amplitude = -2

    Phase shift = 3/pi

    Source(s): personal skills
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