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(3,4),点C.(2,2),点D.(3,1),则点D.的对应点 的坐标是 A.(4,2)B.(4,1) (5,2) (5,1)
(﹣4,2), (﹣6,﹣4),以原点O.为位似中心,相似比为,把△ABO缩小,则点A.的对应点A.′的坐标是( ) A.(﹣2,1)B.(﹣8,4) (﹣2,1)或(2,﹣1) (﹣8,4)或(8,﹣4)
(-4,2), (-6,-4 ),以原点O.为位似中心,相似比为,把△ABO缩小,则点A.的对应点A.'的坐标是 ( ) A.(-2,1) B.(-8,4) (-8,4)或(8,-4) (-2,1)或(2,-1)
(2,﹣1)或(﹣2,1) (8,﹣4)或(﹣8,4) (2,﹣1) (8,﹣4)
(﹣2,1) (﹣8,4) (﹣8,4)或(8,﹣4) (﹣2,1)或(2,﹣1)
(﹣2,1) (2,﹣1) (2,﹣1)或(﹣2,﹣1) (﹣2,1)或(2,﹣1)
(﹣2,1) (﹣8,4) (﹣8,4)或(8,﹣4) (﹣2,1)或(2,﹣1)
(-2,1) (-8,4) (-8,4)或(8,-4) (-2,1)或(2,-1)
(2,﹣1)或(﹣2,1) (8,﹣4)或(﹣8,4) (2,﹣1) (8,﹣4)
(-2,1) (-8,4) (-8,4)或(8,-4) (-2,1)或(2,-1)