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Math Help - Need help with a relatively easy question

  1. #1
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    Need help with a relatively easy question

    Please help me if possible.
    I have three points (32; 6) (48; 14) and (64; 24)
    i have to find out the equation of a quadratic function that applies to these points. (ex:y=4x^2+5.7x+83)
    Please can you explain to me how its done.
    i had a method of substituteing into y=ax^2+bx+c but i checked with my graphing calculator and i got it completely wrong.
    Thank you so much

    EDIT !!! : NEVER MIND I FOUND OUT THANKS ANYWAY
    Last edited by mamann; March 2nd 2010 at 09:55 AM. Reason: tell people to not try this problem
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  2. #2
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    Quote Originally Posted by mamann View Post
    I have three points (32; 6) (48; 14) and (64; 24)
    Should your 1st point not be (32, 4) ?
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  3. #3
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    Quote Originally Posted by Wilmer View Post
    Should your 1st point not be (32, 4) ?
    Nope its (32; 6) I have to find the line of best fit (quadratic equation)
    How do i do that?

    (P.S: The graphing calculator says that its "0.003x^2+0.1875x-4"
    Last edited by mamann; March 2nd 2010 at 08:52 AM. Reason: add the P.S
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