Answer:
The answer is L'(-2,2), M' (-6,4), and N' (-5,-4)
Step-by-step explanation:
Mapping Rule for 90 Counterclockwise Rotations
1) switch the x and y coords
2) multiply the new x coords by -1
3) Simplify
(x,y) --> (-y,x)
Example Problem
Rotate the point N(2,-4) 90 counterclockwise around the origin.
N(2,-4) --> N' (4,2)
I hope this helps you. I know the example problems always helped me understand.