kynlie6535 kynlie6535 16-12-2022 Mathematics Answered Which representation of a transformation on a coordinate grid does not preserve congruence? a. ( x, y) → ( x, -y) b. ( x, y) → ( 7/8 x, 7/8 y) c. ( x, y) → ( x+6, y-4) d. ( x, y) → ( y, -x)