(a) The first transformation could be a 90 degree counterclockwise rotation. The second transformation could be a translation consisting of both a 2 unit shift to the left and a 4 unit shift upwards.
(b) So an ordered pair rule that could work:
Transformation #1: (x,y) -> (-y,x)
Transformation #2: (x,y) -> (x-2, y+4)
