In the standard coordinate plane, the coordinate of D are and the coordintate of E are . When D is roated 180 degrees about E the result is F. In terms of d, e, and k, what are the coordinates of F?

The answer is but I'm not sure to obtain to it :(

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- Dec 21st 2010, 08:50 PMsarahhRotation of points
In the standard coordinate plane, the coordinate of D are and the coordintate of E are . When D is roated 180 degrees about E the result is F. In terms of d, e, and k, what are the coordinates of F?

The answer is but I'm not sure to obtain to it :( - Dec 21st 2010, 09:29 PMFernandoRevilla
is the middle point of i.e, if then,

Fernando Revilla - Dec 21st 2010, 09:41 PMsarahh
- Dec 21st 2010, 09:59 PMFernandoRevilla