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December 22, 2014

December 22, 2014

Posted by **Ann** on Thursday, May 17, 2012 at 7:59pm.

- AlgebraB -
**Reiny**, Thursday, May 17, 2012 at 8:25pmafter a 180° rotation

(x,y) ----> (-x,-y)

so

D(-2,4) -----> D'(2,-4)

same for the other points,

it is really that easy.

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