4. the vertices of a triangle are a(-3, 1), b(-3, 4), and c(1, 2). after translation, a' is the point (-1, -4). find the translation rule and the coordinates of b'. 1 point (x, y) --> (x - 2, y - 5) ; b' (-5, -1) (x, y) --> (x + 4, y + 5); b' (1, 9) (x, y) --> (x - 4, y - 3); b' (-7, 1) (x, y) --> (x + 2, y - 5); b' (-1, -1)