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kenneyfamily

  • 3 years ago

state the amplitude and period and phase shift of the function y=-3cos(3x+3pi/2)

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  1. etemplin
    • 3 years ago
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    http://www.wmueller.com/precalculus/families/1_71.html this will show you how to find all 3 very simple process

  2. kenneyfamily
    • 3 years ago
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    hmm ok

  3. kenneyfamily
    • 3 years ago
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    still confused though :(

  4. etemplin
    • 3 years ago
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    the amplitude of this function is the number in front of cos its always positive its 3 the period is 2pi/(the number with x) 2pi/3 the phase shift is the number after x the function was moved left 3pi/2

  5. kenneyfamily
    • 3 years ago
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    amp=3 period 2pi/3 phase shift= 3pi/2 that right? @etemplin

  6. etemplin
    • 3 years ago
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    yes, except phase shift should be either negative or specified "to the left"

  7. kenneyfamily
    • 3 years ago
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    THANKS!

  8. kenneyfamily
    • 3 years ago
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    @etemplin so for the function y=3sin(3x/2-pi/4)...the amp is 3, period is 3pi/2 and phase shift pi/4?

  9. kenneyfamily
    • 3 years ago
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    @etemplin

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