For R the coordinates are ( -2,4)
For R' the coordinates are ( 2,-3)
because X is traslated 4 units to the right -2+4=2
and Y is translated 7 units down. 4-7= -3
Now calculate the same for P and Q
For P' the coordinates are (0,-7)
because -4+4=0 and 0-7=-7
For Q' the coordinates are (8,-5)
because 4+4=8 and 2-7= -5