点M(﹣2,1)关于y轴的对称点N的坐标是()
A: (2,1)
B: (1,﹣2)
C: (﹣2,﹣1)
D: (2,﹣1)
A: (2,1)
B: (1,﹣2)
C: (﹣2,﹣1)
D: (2,﹣1)
举一反三
- 点\( P(2, - 1,3) \) 关于 \( xOy \)坐标面,关于\( x \) 轴,关于原点的对称点分别为( ). A: \( (2, - 1, - 3),(2,1, - 3),( - 2,1, - 3) \) B: \( ( - 2, - 1, - 3),(2, - 1, - 3),( - 2,1, - 3) \) C: \( (2, - 1, - 3),( - 2,1, - 3),( - 2, - 1, - 3) \) D: \( ( - 2, - 1, - 3),( - 2,1, - 3),(2, - 1, - 3) \)
- 点A(-2,1,4),点A关于原点对称点坐标是: A: (1,-2,-4) B: (-2,1,-4) C: (2,-1,-4) D: (2,1,-4)
- 点M(3,-2,1)关于坐标原点的对称点是( ) A: (-3,2,-1) B: (-3,-2,-1) C: (3,-2,-1) D: (-3,2,1)
- 点M(3,-2,1)关于坐标原点的对称点是( ) A: (-3,2,-1) B: (-3,-2,-1) C: (3,-2,-1) D: (-3,2,1)
- 点M(3,-2,1)关于坐标原点的对称点是( ) A: (-3,2,-1) B: (-3,-2,-1) C: (3,-2,-1) D: (-3,2,1)