Question

rotate 90 clockwise around the origin (-6,-2) (-3,1) (-1,1) (2,-4)

Answer 1

The rule for a rotation by 90 about the origin is (x,y)→(−y,x)
so
(-6,-2) ---> (2, -6)
(-3,1)  ---> (-1,-3)
(-1,1)  ---> (-1,-1)
(2,-4)  ---> (4, 2)