(15 POINTS + BRAINLIEST) please help i'm really confused on the highlight section

It's letting you pick your own translation. How about 2 to the right, one down which gives the rule
(x,y) -> (x+2, y-1)
Then our original points C(6,3), G(6,-3) and W(-2,3) map to
C'(8,2), G'(8,-4), W'(0,-4)