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Math Help - Coordinate Geometry

  1. #1
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    Coordinate Geometry

    I am having really hard time with the following questions. Especially the first pic. And whats with people selling stuffs here?
    Attached Thumbnails Attached Thumbnails Coordinate Geometry-img_05331.jpg   Coordinate Geometry-img_05321.jpg   Coordinate Geometry-img_05311.jpg   Coordinate Geometry-img_05301.jpg   Coordinate Geometry-img_05291.jpg  

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  2. #2
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    Re: Coordinate Geometry

    The question could not be read from the image. Please upload the question so as to enable us to help you.
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  3. #3
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    Re: Coordinate Geometry

    Strange

    it is very clear....a linear function is of the type y=ax+b
    replace x = 1000 and then x = 2000 and solve the system ...to find a and b
    you must find y=x/100 + 25....it is simple.
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  4. #4
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    Re: Coordinate Geometry

    I am sorry I still don't get it. Please help this dumb guy.
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  5. #5
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    Re: Coordinate Geometry

    Coordinate Geometry-05-apr.pngClick image for larger version. 

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  6. #6
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    Re: Coordinate Geometry

    I am sorry I still don't get it.

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  7. #7
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    Re: Coordinate Geometry

    There is atyping mistake, when x = 4000 we get y = 65. By mistake i typed x twice. Sorry. Now it should be clear
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