Quinton tried to transform triangle fgh according to the ruleb(x, y) --> (-y, x). which best describes his attempt?

a. correct. he transformed the triangle according to the rule (x, y) --> (-y, x).

b. incorrect. he transformed the triangle according to the rule (x, y) --> (y, -x)

c. incorrect. he transformed the triangle according to the rule (x, y) --> (-y, x)

d. incorrect. he transformed the triangle according to the rule (x, y) --> (-x, -y)