Atriangle is rotated 90° about the origin. which rule describes the transformation?
(x, y) - (-*, -y)
(x, y) - x)
(x, y) - (-y. -*)
(xy) - 1. -*)

Mexico city is an example of how humans alter their environment because it was a. one of the world’s largest cities b. built on drained and filled lake beds c. built after conquest by the spanish d. once the capital of the aztec empire