Question

7) What are the coordinates of the image of (2, -5) after a counterclockwise rotation of 90º about the origin?1) (-2,5)2) (2,5)3) (-5,-2)4) (5,2)

Answer 1

(5, 2)

Explanations:

When an object A(x, y) is rotated 90º counterclockwise about the origin, the image of the rotated figure will become A'(-y, x)

Therefore, when the object of coordinates (2, -5) is rotated 90º couterclockwise about the origin, the coordinates of the image become:

(-(-5), 2) = (5, 2)