rotation

Question 1

reflection on x axis

Answer 1

x,y –> x,-y

Question 2

reflection on y axis

Answer 2

x,y –> -x, y

Question 3

reflection on origin (y=x)

Answer 3

x,y –> y,x

Question 4

180 around origin

Answer 4

x,y –> -x,-y

Question 5

90 around origin counterclockwise

Answer 5

x,y –> -y,x

Question 6

90 around origin clockwise

Answer 6

x,y – y,-x