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Math Help - Slope question

  1. #1
    Newbie dizzycarly's Avatar
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    Slope question

    This is simple question but I kept getting -13 when the asnwer should be -7. I can't figure out what I am doing wrong.


    5 = 3-k/4+6
    5 = 3-k/-2
    -10 = 3-k
    -13 = k?

    hmmm
    I probably did it wrong, please correct! thanks so much!
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  2. #2
    Rhymes with Orange Chris L T521's Avatar
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    Quote Originally Posted by dizzycarly View Post
    This is simple question but I kept getting -13 when the asnwer should be -7. I can't figure out what I am doing wrong.



    I probably did it wrong, please correct! thanks so much!
    I'm trying to interpret the problem. I'm going to assume that it is 5=\frac{3-k}{4}+6

    First, subtract 6 from both sides to get -1=\frac{3-k}{4}

    Now multiply both sides by 4 to get -4=3-k.

    Solving for k, we see that -7=-k\implies k=7.

    If the answer really is k=-7, then I think the problem would have to be 5=\frac{3+k}{4}+6

    Does this make sense? If you have further comments or questions, please post back!
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  3. #3
    Newbie dizzycarly's Avatar
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    I figure it out, I messed up the fomula. haha
    The orginal fomula was M = y2-y1/x2-x1.

    Thanks anyways though! This forum is so awesome when it comes to homework help
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