The coordinates of the point B as described in which case it is the image formed upon reflection of point A is; (5,4)
If follows from the task content description that the point A is an initial point which upon reflection yields point B.
Hence, it follows that the coordinates of point B can be determined according as follows;
For x coordinate;
-1 -2 = 2 - x
And hence, x = 5.
For y coordinate;
-8-(-2) = -2 - y
y = 4.
Hence, the coordinates of the image point B is; (5,4).
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