A figure is translated six units to the left and two units down. Which rule represents this translation?
a. (x, y) → (x + 6, y + 2)
b. (x, y) → (x + 6, y − 2)
c. (x, y) → (x − 6, y + 2)
d. (x, y) → (x − 6, y − 2)
