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Math Help - straight line

  1. #1
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    Smile straight line

    A (-4,5) B(-2-2) C(4,-1)

    find the equation of the median from c!

    i need help! PLZ REPLY!!!

    can u tell me if the answer 14y+x=18 is correct??
    Last edited by NicoleS909; September 6th 2009 at 06:23 AM.
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  2. #2
    MHF Contributor red_dog's Avatar
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    The midpoint of AB is M\left(-3,\frac{3}{2}\right).

    The equation of CM:

    \frac{x-4}{-3-4}=\frac{y+1}{\frac{3}{2}+1}\Rightarrow 5x+14y-6=0
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  3. #3
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    Quote Originally Posted by NicoleS909 View Post
    A (-4,5) B(-2-2) C(4,-1)

    find the equation of the median from c!

    i need help! PLZ REPLY!!!

    can u tell me if the answer 14y+x=18 is correct??
    If x= 4, y=-1, that is 14(-1)+ 4= -14+ 4= 10, not 18 so it does not even contain C.
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