Answer:
A'(-3,-7) B'(-5,-12) C'(-11,-9)
Explanation:
A(3,2) B(1,-3) C(-5,0)
Moving 6 units left and 9 units down, assume standard axes so up and right are positive, down and left are negative.
A'(3-6,2-9) B'(1-6, -3-9) C'(-5-6,0-9)
A'(-3,-7) B'(-5,-12) C'(-11,-9)