The answer depends on the centre of rotation. A rotation cannot be described without specifying the centre of rotation.
The coords are (6, 1).
It is (6, 1).
It is 1/4 of a turn
90 degrees is a 1/4 of a full rotation of 360 degrees
The answer will depend on whether the rotation is clockwise or counterclockwise.
The answer depends on the centre of rotation. A rotation cannot be described without specifying the centre of rotation.
It is (-1, 6).
(-1, -4) rotated 90 degrees anticlockwise
That depends upon the centre of rotation - it can be any point at all in the plane; eg: If the centre is (-1, -2), then after the rotation (-1, -2) → (-1, -2) If the centre is (-0, 0), then after the rotation: (-1, -2) → (2, -1) If the centre is (1, 2), then after the rotation: (-1, -2) → (5, 0) etc.
The coords are (6, 1).
It is (-6, -1).
It is (6, 1).
It is 1/4 of a turn
90 degrees is a 1/4 of a full rotation of 360 degrees
It is (-1, 6).Also, if the rotation is 180 degrees, then clockwise or anticlockwise are irrelevant.It is (-1, 6).
180 rotation