Question 146953
The point Q(2,5) becomes T(2,5)=(2+2, 5-1) = Q'(4,4).
The point R(6,5) becomes T(6,5)=(6+2, 5-1) =R'(8,4).


In the graph, the red triangle shows the initial position and green shows the final position.

{{{drawing( 400, 400, -10, 10, -10, 10,
  grid( 1 ),  
  red(triangle( 1, 3, 2, 5, 6, 5 )),
  locate( 1, 3, P ), locate( 2, 5, Q ), locate( 6, 5, R ),
  green(triangle( 3, 2, 4, 4, 8, 4 )), 
  locate( 3, 2, P1 ), locate( 4, 4, Q1 ), locate( 8, 4, R1 )
  )}}}