The coordinates of a quadrilateral are (1, 2), (4, 2), (1, 4), and (4, 4). after a transformation, the new coordinates are (1, −2), (4, −2), (1, −4), and (4, −4). which transformation occurred? a) (x, y)→(x + 2, y + 2) b) dilation; (x + 2), (y + 2) c) reflection across the y-axis d) reflection across the x-axis