Answer:
D': (3,0)
E': (1,2)
F': (2,4)
Explanation:
Using this formula below: (x,y) -> (-y,x) AND finding out the coordinates of D (0,-3), E (2,-1), and F (4,-2)
Just plug in all of the x and y into the formula to get the answer as the one I got, hope this helps!