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Math Help - Finding the slope of a line without coordinates or scale

  1. #1
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    Exclamation Finding the slope of a line without coordinates or scale

    I've been trying to figure these questions out for hours, and I'm sure it's probably something very simple...

    Here is the diagram I am working from...


    The questions ask:
    What is the slope of AB?
    If the measure of angle A=30 degrees, what is the slope of AB?
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  2. #2
    Forum Admin topsquark's Avatar
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    Quote Originally Posted by Kiki31 View Post
    I've been trying to figure these questions out for hours, and I'm sure it's probably something very simple...

    Here is the diagram I am working from...


    The questions ask:
    What is the slope of AB?
    If the measure of angle A=30 degrees, what is the slope of AB?
    Slope is "rise over run" so the slope will be equal to a/b. Likewise you can use some simple trigonometry to prove that the slope is equal to tan(\theta) where \theta is angle A.

    -Dan
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    Okay, that's what I thought the first answer would be. Thanks

    Any idea about the second question?
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  4. #4
    Forum Admin topsquark's Avatar
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    Quote Originally Posted by Kiki31 View Post
    Okay, that's what I thought the first answer would be. Thanks

    Any idea about the second question?
    That's what the "tangent" comment was in reference to. The slope of the line is the tangent of angle A.

    -Dan
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