The vertices of a polygon are given. Name the coordinates of the given number of degrees about the origin. J(-2,1) , K(-1,4) , L(3,4) , M(3,1) ; 90 degree (Counter-clockwise)?

The coordinates of the given 90 degree (Counter-clockwise) about the origin from the given vertices J(-2,1), K(-1,4), L(3,4), M(3,1) will be:

1. J(-2,1): (-2, -2)
2. K(-1,4): (-4, -1)
3. L(3,4): (4, 3)
4. M(3,1): (1, 3)