I think it must be 87 .
Step-by-step explanation:
Not sure how to explain.
These questions are no problem, so long as you remember the rules for rotations. A point that is rotated 90 counterclockwise is simply x and y flipped, and negating the y.
For example, 2,9 becomes -9, 2.
So point A would be -1, 1, B would be -2, 1. So on and so forth.
NO THOS IS NOT TRUESNBDJDN
The word in the problem that indicates is a negative number is “descend”