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Homework Help: A project with some math questions just need to know how to do them

  1. Oct 12, 2005 #1
    ok i have a few long problems that are part of project i just need to know how to go about solving them i dont expect anyone to do it for me but here it is



    Distance(AU)|0.39 | 0.72 | 1.00 | 1.49 | 5.19 | 9.51 |19.1 | 30.0 | 39.3
    Period(days) | 88 | 225 | 365 | 687 | 4344 | 10775 |30681 |60267 | 90582
    ^^
    that is suposed to be a table

    a - state whether in data is quadratic,cubi or quartic. Write the equation that best models the data. State the R squared value.



    b - When a planet is 15(AU) from the sun, what is its approximate orbit period?



    c - If a planet has an orbit period of 69,000 days, what is its approximate distance from the sun?


    all the questions are like that but if anyone can tell me how to do this one i should be fine; thanks alot
     
  2. jcsd
  3. Oct 12, 2005 #2

    Tide

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    a) Draw a graph!

    b) Look up Kepler's Laws! Or use the properties you found in (a)!

    c) See (b).
     
  4. Oct 12, 2005 #3
    so would the slope be distance of period and no y intercept???
     
  5. Oct 12, 2005 #4

    Tide

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    I don't understand the question.
     
  6. Oct 13, 2005 #5
    me either thats why i posted it

    but would distance be x and period be y???
     
  7. Oct 14, 2005 #6

    Tide

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    No, I meant I don't understand your question:

    As to your new question:

    the answer is "yes!"
     
  8. Oct 15, 2005 #7
    i figured it out i had to use the calculator i dont need anyhelp anymore thanks though
     
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