Question

Which coordinate map describes a 90 degree counterclockwise rotation?

A. (x,y) --> (x,-y)
B. (x,y) --> (y,-x)
C. (x,y) --> (-y,x)
D. (x,y) --> (-x,y)

Answer 1

It b your doing algebra or pre algebra your welcome

Answer 2

C.(x,y)--->(-y,x)
i hope it's right!