在平面直角坐标系中,已知点
的坐标为
,现在
轴上找一点
,使得
为等腰三角形,则符合条件的点
的个数有( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22fcf786aa84fb8ca41772f7790910c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
A.2个 | B.3个 | C.4个 | D.5个 |
更新时间:2024-02-10 12:23:55
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【推荐1】如图,直线m⊥n,在某平面直角坐标系中,x轴∥m,y轴∥n,点A的坐标为(-4,2),点B的坐标为(2,-4),则坐标原点为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/21/580e4a6d-6fe4-4e49-b956-a82098b7777b.png?resizew=272)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/21/580e4a6d-6fe4-4e49-b956-a82098b7777b.png?resizew=272)
A.O1 | B.O2 | C.O3 | D.O4 |
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【推荐2】关于反比例函数
,下列说法错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7467aa744c496be6cc86aec4a208364c.png)
A.它的图象是双曲线 | B.它的图象在第一、三象限 |
C.y的值随x的值增大而减小 | D.若点![]() ![]() |
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【推荐1】已知等腰三角形的两边长分别为a、b,且a、b满足
,则此等腰三角形的周长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1000d4f8028398481ab5b877e296af4d.png)
A.22或21 | B.22或23 | C.23或24 | D.22或24 |
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【推荐2】如图,二次函数
图象的顶点为
,其图象与
轴的交点
、
的横坐标分别为
,
.与
轴负半轴交于点
,在下面五个结论中:
①
;②
;③
;④只有当
时,
是等腰直角三角形;⑤使
为等腰三角形的
值可以有四个.
其中正确的结论有( )
![](https://img.xkw.com/dksih/QBM/2018/10/25/2061286313795584/2062846324850688/STEM/d80a52de38db4cf69fbfd030f465de5f.png?resizew=132)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d7b847f3ea395e08fbe48000822e877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29418e5014731850c55565b6bf47aa41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84fbceb31f23d5aed2d178d4d407f751.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee08def7a24d4255453ad40a77cd4e9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cdbf3f04871ab1cf53b17401eae80da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a44d1b71578bf30436c7176aa688fbca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bb961bd7db3adb76af2d4cedb611bd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df14ccffcd0241dcb7fb1ced02d32d7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
其中正确的结论有( )
![](https://img.xkw.com/dksih/QBM/2018/10/25/2061286313795584/2062846324850688/STEM/d80a52de38db4cf69fbfd030f465de5f.png?resizew=132)
A.2个 | B.3个 | C.4个 | D.5个 |
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