Question

Find the image of (-8, 9) after a counterclockwise rotation of 180° about the origin.

a.
(-9, 8)
c.
(-9, -8)
b.
(8, -9)
d.
(8, 9)

Answer 1

The answer is B (8,-9)
You get this answer by using the rule (x,y)-->(-x,-y)