The transformation (x,y) --> (x,-y) is reflection over x axis. while the x coordinates in the image stay the same as the original, y coordinates change the sign. Therefore coordinates of original image and final image after reflection E - (0,3) --> E' (0,-3) F - (2,2) --> F' (2,-2) G - (1,1) --> G' (1,-1) The diagram attached shows both the original image and image after reflection