Please help. I have to write a rule to describe each transformation on graph..

Answer:
7. Clockwise rotation of 90 degrees around the origin
8. Clockwise rotation of 180 degrees around the origin
9. Counterclockwise rotation of 90 degrees around the origin
10. Clockwise 180 degree rotation around the origin
11. Clockwise 180 degree rotation around the origin
12. Clockwise 180 degree rotation around the origin