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Math Help - [SOLVED] Trigonometry Function-finding the amplitude & vertical displacement.

  1. #1
    kath867
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    Red face [SOLVED] Trigonometry Function-finding the amplitude & vertical displacement.

    I have this Trig. function : y= -10+20sin(theta+30deg.)
    and I don't know what the amplitude is here , is it -10 or 20? ?
    and where's the vertical displacement at????
    Well, Thanks for your help in advance. =]
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  2. #2
    Flow Master
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    Quote Originally Posted by kath867 View Post
    I have this Trig. function : y= -10+20sin(theta+30deg.)
    and I don't know what the amplitude is here , is it -10 or 20? ?
    and where's the vertical displacement at????
    Well, Thanks for your help in advance. =]
    y= -10+20sin(theta+30deg.) = y= 20sin(theta+30deg.) - 10.

    Amp = 20.

    Vertical displacement is 10 units down.
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