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Math Help - Dilation of 2

  1. #1
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    Dilation of 2

    On the accompanying set of axes, graph ΔABC with coordinates A(-1,2), B(0,6), and C(5,4). Then graph ΔA'B'C', the image of ΔABC after a dilation of 2.

    Also, what exactly is meant by a dilation of a number?
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  2. #2
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    Quote Originally Posted by magentarita View Post
    On the accompanying set of axes, graph ΔABC with coordinates A(-1,2), B(0,6), and C(5,4). Then graph ΔA'B'C', the image of ΔABC after a dilation of 2.

    Also, what exactly is meant by a dilation of a number?
    A dilation is a transformation that produces an image that is the same shape as the original, but is a different size.

    This is a good site to find out about dilations. It has an example very similar to yours.

    Regents Math A: Dilations

    Just multiply each of your coordinates by a scale factor of 2 to get your new dilated coordinates:
    A'(-2, 4), B'(0, 12), C'(10, 8)
    Last edited by masters; October 3rd 2008 at 11:30 AM.
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  3. #3
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    great....

    Quote Originally Posted by masters View Post
    A dilation is a transformation that produces an image that is the same shape as the original, but is a different size.

    This is a good site to find out about dilations. It has an example very similar to yours.


    Just multiply each of your coordinates by a scale factor of 2 to get your new dilated coordinates:
    A'(-2, 4), B'(0, 12), C'(10, 8)
    I know that site. Thanks.
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