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Math Help - Finding area in graph

  1. #1
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    Finding area in graph

    Basically, the question states to find the area of a shape (form by line) in a graph, but my question is, what unit should I use? I know the steps, but what unit should my answer be?

    The answer uses units of the graph

    Thank you
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  2. #2
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    Re: Finding area in graph

    Do you mean square centimeters or square inches? In these problems, lengths and areas don't have dimensions. If you have a graph, you have a coordinate plane and a unit segment on each axis. The question asks how many 1 x 1 squares (probably fractional number) can fit into the shape.
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  3. #3
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    Re: Finding area in graph

    Quote Originally Posted by emakarov View Post
    Do you mean square centimeters or square inches? In these problems, lengths and areas don't have dimensions. If you have a graph, you have a coordinate plane and a unit segment on each axis. The question asks how many 1 x 1 squares (probably fractional number) can fit into the shape.
    Erm, Say length Point A(-5,-0) to B(4,0) is 9units (one side of the triangle), then it's height is 10 units. So, 1/2 x 9 x 10 = 45, but what unit should I put? Or maybe there's not a need for it?

    Sorry for being so vague about this, I can't really describe it well
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  4. #4
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    Re: Finding area in graph

    There probably isn't a need for any units but if you are saying that one length is 9 "units" and another is 10 "units", then the area will be in "units squared" or "square units".
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  5. #5
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    Re: Finding area in graph

    Quote Originally Posted by HallsofIvy View Post
    There probably isn't a need for any units but if you are saying that one length is 9 "units" and another is 10 "units", then the area will be in "units squared" or "square units".
    Thanks, I think I will go with units squared Thanks
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