Rectangle A′B′C′D′ is the image of rectangle ABCD after a dilation. What is the scale factor of the dilation? Enter your answer in the box. A coordinate plane that includes two rectangles rectangle ABCD and rectangle A prime B prime C prime D prime. For rectangle ABCD, point A is at (-5, -2), point B is at (-8, -2), point C is at (-8, -5), and point D is at (-5, -5). For rectangle A prime B prime C prime D prime, point A prime is at (-2.5, -1), point B prime is at (-4, -1), point C prime is at (-4, -2.5), and point D prime is at (-2.5, -2.5).