Answer:
Step-by-step explanation:
"Reflected across axis will leave the x coordinate unchanged, but would be the negative of the y coordinate. So (3,-3) would become (3,+3). So the reflected triangle will have the following coordinates (the new values of Y are noted as Y').
X Y Y'
X -1 1 -1
Y -1 -2 2
Z 3 -3 3
