In the xy-plane, the line y = k is the perpendicular bisector of the line segment PQ and the line x = d is the perpendicular bisector of the line segment RQ. If the coordinates of the point R are (-d, -k), then what are the coordinates of the point P? Pick one:
A) (-5d, -5k) B) (-3d, -3k) C) (2d, 2k) D) (3d, 3k) E) (5d, 5k)
firstly the Question tells us that RQ and PQ are perpendicular at Q..   Now the coordinates of the point R are (-d, -k), so R is at a distance of 2d from line x and at dist of 2k from line Y..   as line X bisect RQ .... length of RQ =4d and coord (3d,-k)..   as line Y bisect PQ .... length of PQ =4k and coord (3d,3k).ans (3d, 3k)
<result>D</result>
In the xy-plane, the line y = k is the perpendicular bisector of the line segment PQ and the line x = d is the perpendicular bisector of the line segment RQ. If the coordinates of the point R are (-d, -k), then what are the coordinates of the point P?