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Geometry: Dilation

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symmetry
 
Reply Thu 29 Sep, 2005 02:56 pm
After a dilation with respect to the origin, the image of point A( 3,4)
is A'( 9,12). What are the coordinates of the image of point B( 2,7)
after the same dilation?

I don't get this dilation stuff.
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markr
 
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Reply Thu 29 Sep, 2005 10:07 pm
Looks like an expansion by a factor of three. Each coordinate is multiplied by three.
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