The coordinates of M' is M'(-3,-4).
According to the statement
LMNP is rotated 90 degrees clockwise about the origin.
and we have to find the coordinates of M'.
so,
when it is rotated then it take four steps to reach at the end.
So, due to its moving procedure it takes four steps to reach at end.
and due to the four step procedure it's coordinates are changes four time and that's why at the end the coordinates we have to find are become a -3 and -4. So, the coordinate we get are -3 and -4
Due to this procedure the coordinate of m' become M'(-3,-4)
So, The coordinates of M' is M'(-3,-4).
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