题目内容
点P(2,5)关于直线x+y+1=0的对称点的坐标为
(6,-3)
(3,-6)
(-6,-3)
(-6,3)
(A) (5,2) (B) (2,-5) (C) (-5,-2) (D) (-2,-5)
点P(2,5)关于直线x+y=0的对称点的坐标是
A.(5,2)
B.(2,-5)
C.(-5,-2)
D.(-2,-5)
A.(6,-3)
B.(3,-6)
C.(-6,-3)
D.(-6,3)