Answer:
The coordinates of end points of the side congruent to JM i.e J'M' are J'(-2,-6) & M'(-1,5).
Step-by-step explanation:
Given the coordinates of parallelogram JKLM
J(-6,2) , K(-4,6), L(-3,3), M(-5,-1)
Now, the parallelogram JKLM is rotated 270° clockwise around the origin, then the coordinates after rotation about 270° changes to
(x,y) → (y,-x)
Hence, the coordinates of the endpoints of the side congruent to side JM are
J(-6,2) → J'(-2,-6)
M(-5,-1) → M'(-1,5)