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Math Help - Graphing trig functions

  1. #1
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    Graphing trig functions

    Im sort ofmlost on thelabeling part

    The equations says y=3sin1/2x

    I have to clearly state the period and amplitude

    The period is 4pi, right?

    How would i go about graphing this? How do i start labeling the graph along the x-axis, i only know how to label a 2pi graph....so lost.
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  2. #2
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    Re: Graphing trig functions

    thought you had a calculator ... ?
    Attached Thumbnails Attached Thumbnails Graphing trig functions-sinecurve.jpg  
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    Re: Graphing trig functions

    I do, but i dont know how to use it to get the information i need because it doesnt show the graph in pi form, it shows it in decimals. Does the ti-89 or any other calc show it in pi form?
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    Re: Graphing trig functions

    Actually the equation is

    Y=3sin (1/2)x

    Where 3 is the amplitude and 2pi / 1/2 is 4pi period. Do i have the period right?
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  5. #5
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    Re: Graphing trig functions

    Quote Originally Posted by noork85 View Post
    Actually the equation is

    Y=3sin (1/2)x

    Where 3 is the amplitude and 2pi / 1/2 is 4pi period. Do i have the period right?
    have you looked at the graph I posted? note the values on the x-axis.
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