Asked by Steve

A segment with endpoint a(3,1) and b(-1,-1) is rotated 90 degrees about its origin what are the new of a and b prime?
Answered by Steve
Rotating 90° about the origin takes

P:(x,y) -> P':(-y,x)

So, plug in your numbers.
Answered by Leah
What's the answer ?
Answered by Anonymous
Second one
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