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Math Help - Trig graphing(I think)

  1. #1
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    Trig graphing(I think)

    I think I'm suppose to graph these but I don't know how

    1) Y=5sin1/3x

    2) Y=Sin2x-4

    3) Y=1/2Sin2(X-90degrees)+1

    4) Y=Sin(3x-120)+1

    5) Y=4Sin(1/2x+30degrees)-1

    Can anyone help me?
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  2. #2
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    Quote Originally Posted by Draft View Post
    I think I'm suppose to graph these but I don't know how

    1) Y=5sin1/3x

    2) Y=Sin2x-4

    3) Y=1/2Sin2(X-90degrees)+1

    4) Y=Sin(3x-120)+1

    5) Y=4Sin(1/2x+30degrees)-1

    Can anyone help me?
    HI

    There are too many questions here . I will do 1 and 2 and you will try the rest . Ok ?

    For (1) , always refer to the original sin graph , y=\sin \theta . Note that For all sin graph here , it will start from 0 and end at 360 .

    One cycle here is 360^o . 1/3 of the cycle would be 120^o so your graph should stop at 120^o . Then label this 120^o as 360^o . Notice that the amplitude is 5.

    For (2) , sin 2x : this will go 2 rounds . -4 : shift the graph downwards for 4 .
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  3. #3
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    Quote Originally Posted by mathaddict View Post
    HI

    There are too many questions here . I will do 1 and 2 and you will try the rest . Ok ?

    For (1) , always refer to the original sin graph , y=\sin \theta . Note that For all sin graph here , it will start from 0 and end at 360 .

    One cycle here is 360^o . 1/3 of the cycle would be 120^o so your graph should stop at 120^o . Then label this 120^o as 360^o . Notice that the amplitude is 5.

    For (2) , sin 2x : this will go 2 rounds . -4 : shift the graph downwards for 4 .
    Forgot about the attachments .
    Attached Thumbnails Attached Thumbnails Trig graphing(I think)-sin-graph-22.bmp  
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  4. #4
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    Quote Originally Posted by mathaddict View Post
    Forgot about the attachments .
    .
    Attached Thumbnails Attached Thumbnails Trig graphing(I think)-sin-graph-11.bmp  
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