在平面直角坐标系
中,
的位置如图所示,三个顶点A,B,C都在格点上.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/14/31d6038b-7ecb-433b-95e2-46894d55d2f5.png?resizew=208)
(1)请在图中描出点C关于y轴对称的点D,并写出点D的坐标__________,连接
,试判断
的形状,并说明理由.
(2)已知点P是y轴上的一点,则当
取最小值时,点P的坐标为__________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/14/31d6038b-7ecb-433b-95e2-46894d55d2f5.png?resizew=208)
(1)请在图中描出点C关于y轴对称的点D,并写出点D的坐标__________,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28a77aa6c27acfffcc601d9ca7e6d4c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
(2)已知点P是y轴上的一点,则当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a51a8d10345f567e0f2daf18529d42f0.png)
更新时间:2023-12-14 16:09:29
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解答题-作图题
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【推荐1】如图,在平面直角坐标系中,
顶点的坐标分别为
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/10/a40918d6-f9c4-4abb-8d49-526449b1b531.png?resizew=227)
(1)请画出
关于
轴对称的
,点
的对应点分别为
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,
;
(2)请写出点
,
的坐标:
(___,___),
(___,___).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7820142e777d0d3a6637c283cdf4fe9.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/10/a40918d6-f9c4-4abb-8d49-526449b1b531.png?resizew=227)
(1)请画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ee6e1d480ece7117e1f87ebf4bbeea.png)
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(2)请写出点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
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解答题-证明题
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【推荐1】如图,已知四边形ABCD是菱形,DF⊥AB于点F,BE⊥CD于点E.
![](https://img.xkw.com/dksih/QBM/2022/4/25/2965880353456128/2970910093058048/STEM/5be8fa6a947448c6aeaee9464f2b5b36.png?resizew=131)
(1)求证:四边形DFBE是矩形;
(2)若DE=2,BE=4,求AD的长.
![](https://img.xkw.com/dksih/QBM/2022/4/25/2965880353456128/2970910093058048/STEM/5be8fa6a947448c6aeaee9464f2b5b36.png?resizew=131)
(1)求证:四边形DFBE是矩形;
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解答题-问答题
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【推荐2】如图,在平面直角坐标系中,一次函数
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轴交于点A,与
轴交于点
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的图象交于点
.
(1)求
的值及一次函数
的表达式;
(2)点
在
轴上,当
是以
为直角边的直角三角形时,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c80c26a794a844127aae7dee87c93b.png)
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(1)求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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解答题-作图题
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名校
【推荐1】如图所示,在平面直角坐标系xOy中,
的三个顶点坐标分别为
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关于x轴对称的图形
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(2)在图中,若
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(2)在图中,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231f712f0a8d7f769bbbd0bea031a9d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
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解答题-作图题
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较易
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【推荐2】如图,在平面直角坐标系中,的顶点A、B、C的坐标分别是
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(1)画出
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(2)以点O为对称中心,画出
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解答题-问答题
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【推荐1】如图,有一张四边形纸片
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解答题-作图题
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【推荐2】如图,在长度为
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(1)在图中画出与
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(1)在图中画出与
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(3)在直线
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4d1d99eab930cef884e01b97d4d56f1.png)
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