已知:如图点
在正比例函数图象上,点B坐标为
,连接
,
,点C是线段
的中点,点P在线段
上以每秒2个单位的速度由点B向点O运动,点Q在线段
上由点A向点O运动,P、Q两点同时运动,同时停止,运动时间为t秒
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/29/a6b2028f-61f3-4766-88ed-966bc33633e0.png?resizew=125)
(1)求该正比例函数的解析式:
(2)当
秒,且
时,求点Q的坐标:
(3)连接
,在点P、Q运动过程中,
与
是否全等?如果全等,请求出点Q的运动速度;如果不全等,请说明理由
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b82409eb884c163d437f21328198cd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f670bb74f9afe96dacafdf77c35f6780.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a19791e892c916407479f574a8090dfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/29/a6b2028f-61f3-4766-88ed-966bc33633e0.png?resizew=125)
(1)求该正比例函数的解析式:
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2a51944c720568f35d443589dfc1aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d242dc46b38c6a8b55d0f5433cbc568.png)
(3)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1f0417d8269f01d8e0bc1a8756e2ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4234cf4d8159f5df0333bcc269ffe099.png)
19-20八年级上·河北保定·期中 查看更多[8]
河北保定市乐凯中学2019-2020学年八年级上学期期中联考数学试题河北省保定市第十九中学2018-2019学年八年级上学期期中联考数学试题(已下线)专题12.9 一次函数章末八大题型总结(拔尖篇)-2023-2024学年八年级数学上册举一反三系列(沪科版)(已下线)专题4.9 一次函数章末八大题型总结(拔尖篇)-2023-2024学年八年级数学上册举一反三系列(北师大版)(已下线)期末复习(压轴43题15个考点)-2023-2024学年八年级数学上学期期中期末考点归纳满分攻略讲练(北师大版)(已下线)专题6.9 一次函数章末八大题型总结(拔尖篇)-2023-2024学年八年级数学上册举一反三系列(苏科版)(已下线)专题5.9 一次函数章末八大题型总结(拔尖篇)-2023-2024学年八年级数学上册举一反三系列(浙教版)(已下线)专题19.7 正比例函数(知识梳理与考点分类讲解)-2023-2024学年八年级数学下册基础知识专项突破讲与练(人教版)
更新时间:2024-01-26 19:14:17
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(2)若
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解答题-作图题
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【推荐2】在如图所示的方格(每个小正方形的边长为1)中,
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(3)在(1)中坐标系的y轴上是否存在一点P,使得
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解答题-问答题
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适中
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【推荐1】如图,已知直线AB与正比例函数
的图像交于点
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(1)求k值及直线AB的函数表达式,
(2)判定
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解答题-问答题
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【推荐2】已知正比例函数y=2x的图像上有一点B(m+2,m2﹣4),且点B在第一象限.
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解答题-问答题
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【推荐1】如图,在平面直角坐标系中,抛物线
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解答题-应用题
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【推荐2】某段河流的两岸是平行的,某数学兴趣小组在老师的带领下不用涉水过河就能测得河的宽度,他们是这样做的:
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③从点D处沿河岸垂直的方向行走,当到达A树正好被C树遮挡住的点E处时,停止行走;
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