如图,点P,Q从边长为2的等边三角形
的点B出发,分别沿着
,
两边以相同的速度在
的边上运动,当两点在
边上运动到重合时停止.在此过程中,设点P,Q移动过程中各自的路程为x,所得
的面积为y,则y随x变化的函数图象大致为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/3/4e872afb-eb21-4069-8279-da94e49a04ed.png?resizew=175)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8dcc9f79fe5f07f25447aa442ee14ad.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/3/4e872afb-eb21-4069-8279-da94e49a04ed.png?resizew=175)
A.![]() | B.![]() |
C.![]() | D.![]() |
2022·山东聊城·二模 查看更多[5]
2022年山东省聊城市东昌府区中考二模数学试题(已下线)专题22.34 实际问题与二次函数(巩固篇)(专项练习)-2022-2023学年九年级数学上册基础知识专项讲练(人教版)(已下线)重难点02 八种二次函数实际问题-2022-2023学年九年级数学考试满分全攻略(人教版)2023年安徽省合肥市庐阳区寿春中学中考数学模拟试卷广东省阳江市江城区阳江市实验学校2023-2024学年九年级上学期期中数学试题
更新时间:2022-05-15 19:18:32
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【推荐1】如图,菱形ABCD中,∠A=600,AB=2,动点P从点B出发,以每秒1个单位长度的速度沿B→C→D向终点D运动.同时动点Q从点A出发,以相同的速度沿A→D→B向终点B运动,运动的时间为
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【推荐2】如图,在
中,
,动点P从点A出发,以每秒1个单位长度的速度沿线段
匀速运动,当点P运动到点B时,停止运动,过点P作
交
于点Q,将
沿直线
折叠得到
,设动点P的运动时间为t秒,
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【推荐1】如图,是三个等边三角形(注:等边三角形的三个内角都相等)随意摆放的图形,则
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A.90° | B.120° | C.150° | D.180° |
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交于点H,
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