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Math Help - graph problem

  1. #1
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    graph problem

    graph problem-20-08-2013-07-14-04-.jpg

    the missing word in the problem is "Find the tangent at B "
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  2. #2
    MHF Contributor ebaines's Avatar
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    Re: graph problem

    Note that the slope of the curve at B is negative, so the tangent to the curve is negative. Assuming the question is "the value of the tanget of the point B is closest to ..." which one of the multiple choices is closest to being a negative number?
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  3. #3
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    Re: graph problem

    How do u know that it is a -ve number
    Last edited by mido22; August 20th 2013 at 11:01 AM.
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  4. #4
    MHF Contributor ebaines's Avatar
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    Re: graph problem

    Have you learned what the slope of a line is - "rise over run"? If a line rises from left to right it has a positive slope, and if it falls from left to right it has a negative slope.
    Thanks from mido22
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  5. #5
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    Re: graph problem

    Quote Originally Posted by ebaines View Post
    Have you learned what the slope of a line is - "rise over run"? If a line rises from left to right it has a positive slope, and if it falls from left to right it has a negative slope.
    Oh ! sorry , I forget that ....... ok so the nearest solution is E as there is no -ve number within the other choices
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  6. #6
    MHF Contributor ebaines's Avatar
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    Re: graph problem

    I would say that the answer is B, since 1 is the nearest to a negative number of the 4 choices that are given.
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