Rotate the point (will give Brainlyest).

Answer:
Point A' = (-3,-4)
Step-by-step explanation:
Point A is on (-3,4)
If you were to rotate it 90° the point would be on (3,4)
If you rotated it 180° it would be on (3,-4)
But if it was rotated 270° it would be on (-3,-4)
Hope this helps!! :D