The rule (x, y) → (y, -x) takes a line to a perpendicular line. Select all the rules that take a line to a perpendicular line.
Responses
(x, y) → (2y, -x)
(x, y) → (2y, -x)
(x, y) → (-y, -x)
(x, y) → (-y, -x)
(x, y) → (-y, x)
(x, y) → (-y, x)
(x, y) → (0.5y, -2x)
(x, y) → (0.5y, -2x)
(x, y) → (4y, -4x)
