Posted by Izzy on Tuesday, March 27, 2012 at 1:44pm.
Graph these points.
Angle DFG has vertices D (–2, 4), F (–3, 1), and G (–1, 2). Find the vertices of the image after the rotation of 180° about the origin.

MATH HELP PLEASE!  Steve, Tuesday, March 27, 2012 at 2:57pm
Rotation 180 degrees around (0,0) takes (x,y) > (x,y)
Not much challenge here:
D:(2,4) > (2,4)
. . .
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