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April 1, 2015

April 1, 2015

Posted by **robert** on Saturday, December 1, 2007 at 10:49pm.

I think the answer is (1,-4), (4,-1),(8,-5). In rotation, the coordinates get switched. All I just did was switch the numbers and signs. Is this right?

- math -
**Reiny**, Saturday, December 1, 2007 at 11:59pmdo you want your rotation about the origin?

If so, then the line joining a point and its image point should pass through the origin, yours don't.

if you interchange the x and y coordinates you are forming a reflection in the line y=x

try switching the signs only and plotting the points.

You should have tried plotting right away.

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