90 and 270° rotations practice given a point x, y what is the new point when the point is rotated counterclockwise about the origin of 270°
When a point is rotated counterclockwise about the origin by 270°, its x-coordinate becomes the negative of its original y-coordinate, and its y-coordinate becomes the positive of its original x-coordinate.
Let's say the original point is P(x, y).
After rotating P counterclockwise about the origin by 270°, the new point P'(x', y') can be found using the following formulas:
x' = -y
y' = x
So, the new point P' will be (-y, x).