Question

Triangle JKL is rotated to 270° counterclockwise about the origin to form triangle JKL what is the Y coordinate of point J?

Answer 1

Answer: the Y coordinate is 4

Answer 2

J' = (-2, 4)

Explanation:

The transformation for 270° counterclockwise rotation about the origin is ...

(x, y) ⇒ (y, -x)

The point J is (-4, -2), so the point J' is ...

J' = (-2, -(-4))

J' = (-2, 4)