在平面直角坐标系中,P点关于原点的对称点为P1(﹣3,﹣
),P点关于x轴的对称点为P2(a、b),则
=( )
![](https://img.xkw.com/dksih/QBM/2014/8/13/1573744805888000/1573744811556864/STEM/90ea9dee58664855b3509cc724b55aab.png)
![](https://img.xkw.com/dksih/QBM/2014/8/13/1573744805888000/1573744811556864/STEM/3b9415d242464d66a99e22b1a999f99a.png)
A.﹣2 | B.2 | C.4 | D.﹣4 |
2014·四川雅安·中考真题 查看更多[11]
2014年初中毕业升学考试(四川雅安卷)数学2015-2016学年江苏省盐城东台创新学校八年级上第二次月考数学卷湘教版八年级数学下学期期末复习试卷【全国市级联考】2018年四川省成都市中考数学模拟试卷浙江省萧山区党湾镇初级中学2020届九年级上学期开学考试数学试题湖北省武汉市第八中学2019-2020学年九年级上学期期中数学试题广东省揭阳市榕城区一中2019-2020学年八年级上学期期中数学试题(已下线)【万唯原创】2015年河北省中考数学-试题研究-第一部分第三章10(已下线)【万唯原创】2015年山西中考数学-试题研究-第一部分第三章3.1(已下线)【万唯原创】2015年山西中考-试题研究-第一部分第三章3.1(已下线)考点08 位置与函数-备战2021年中考数学核心考点清单
更新时间:2016-12-05 20:54:55
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