如图,在直角坐标系中,
轴,
,双曲线
的一支经过点
.将
绕点
逆时针旋转,使点
的对应点
落在
轴的正半轴上,
的对应线段
恰好经过点
.
(1)求点
的坐标.
(2)判断点
是否在双曲线另一支上,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/988b6fe9088a599d43b6447f83a42623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a99044cdedf9e67bffd16a7eeeadf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd2981bf2261343f905ec1b5355a3c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)判断点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/2020/9/26/2558355588825088/2564022886998016/STEM/df6ae980f80b4e03a67fb304afc0c8dc.png?resizew=206)
更新时间:2020-10-04 23:40:49
|
【知识点】 反比例函数与几何综合解读
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解答题-问答题
|
适中
(0.65)
【推荐1】在平面直角坐标系xOy中,当图形W上的点P的横坐标和纵坐标相等时,则称点P为图形W的“梦之点”.
(1)已知⊙O的半径为2.
①在点E(2,2),F(
,
),M(﹣1,﹣1)中,⊙O的“梦之点”为_____;
②若点P位于⊙O内部,且为双曲线y=
(k≠0)的“梦之点”,求k的取值范围.
(2)已知点C的坐标为(2,t),⊙C的半径为
,若在⊙C上存在“梦之点”P,求出t的取值范围.
(1)已知⊙O的半径为2.
①在点E(2,2),F(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9db9373e74ecf5d63ad98afe66aa4ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9db9373e74ecf5d63ad98afe66aa4ba.png)
②若点P位于⊙O内部,且为双曲线y=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abb3a62e46296c417261156b51ec6b4.png)
(2)已知点C的坐标为(2,t),⊙C的半径为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
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解答题-问答题
|
适中
(0.65)
名校
【推荐2】如图,已知
,
是一次函数
和反比例函数
的图象的两个交点.
![](https://img.xkw.com/dksih/QBM/2017/6/12/1707165504274432/1707488450781184/STEM/caf6b47cff064c20a6f102abf8e87598.png?resizew=152)
(1)求一次函数和反比例函数的解析式;
(2)观察图象,直接写出不等式
的解集;
(3)P是x轴上的一点,且满足
的面积是9,写出P点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a712340214db8f93314c1fc05fa45dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23c6e58ccbc2c37baf9706c530437b72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05621b18b7ffc991d9f30380e2e08fea.png)
![](https://img.xkw.com/dksih/QBM/2017/6/12/1707165504274432/1707488450781184/STEM/caf6b47cff064c20a6f102abf8e87598.png?resizew=152)
(1)求一次函数和反比例函数的解析式;
(2)观察图象,直接写出不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77bd03a0a4cf385469dc0388e44e907c.png)
(3)P是x轴上的一点,且满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af2cc5f8cec8c498aa12c99c04e1c97d.png)
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