Question

Find the image of A(-5,6) after a rotation 90° about the origin. Help me pleaseee?

Answer 1

For a counterclockwise rotation of 90º about the origin, the coordinates of a point are transformed as:

(a, b) → (-b, a)

So, for a counterclockwise rotation of 90º about the origin of point A(-5, 6), we have:

A(-5, 6) → A'(-6, -5)