A rectangle has vertices (6, 4), (2, 4), (6, -2), and (2, -2). The rectangle is dilated, and the new vertices are (15, 10), (5, 10), (15, -5), and (5,-5). Which of the following represents the motion rule used to dilate the rectangle? O (x, y) (x +9, y+6) O (x, y) + (x + 2.5, y +2.5) O (x, y) O (x, y) → (2.5x, 2.5y)​