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Math Help - Using a TI-83+, how can I find the models for these plots?

  1. #1
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    Using a TI-83+, how can I find the models for these plots?

    I plotted these on my TI-83+, but how do I go about finding the linear, quadratic and exponential models for these points? Thanks in advance.

    Here are the points:
    x y
    1 14 000
    2 9100
    3 6200
    4 4000
    5 3000
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  2. #2
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    Quote Originally Posted by Pupil View Post
    I plotted these on my TI-83+, but how do I go about finding the linear, quadratic and exponential models for these points? Thanks in advance.

    Here are the points:
    x y
    1 14 000
    2 9100
    3 6200
    4 4000
    5 3000
    http://www.pstcc.edu/facstaff/jahren...or/stats83.pdf
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  3. #3
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    Thanks for this, Skeeter. Just one question, does a unit circle come with the calculator or do we have to add it? And how would I go about doing it?
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  4. #4
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    Quote Originally Posted by Pupil View Post
    Thanks for this, Skeeter. Just one question, does a unit circle come with the calculator or do we have to add it? And how would I go about doing it?
    you would have to add it.

    do some research ... TI's website may have a flash app you can buy or you can also try TIcalc.org for a possible free program. you need a connect cable + the software to download.
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