如图1,在矩形
中,
,点M是
的中点.动点P以每秒1个单位的速度从点A出发,按
的顺序在边上运动.同时,动点Q以每秒1个单位的速度从点D出发,在射线
上运动.当动点P运动到点C时,动点P、Q都停止运动.在运动路径上,设点P的运动时间为t秒,
的面积为
,
的面积为
.
(1)分别求出
,
与t之间的函数关系式,并写出自变量t的取值范围;
(2)在如图2的平面直角坐标系中,画出
,
的函数图象,并根据图象写出函数
的一条性质;
(3)根据图象直接写出当
时,t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2314462badb19f2ded0df326fe63b736.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e7a366c0b70345e120cf991180ed483.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/864c030425f5b67b8ab41ee9163ed097.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8f5f5951a68a477dec062478931c3f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/6/de634123-8319-4b90-a283-6bf82aa693b8.png?resizew=398)
(1)分别求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
(2)在如图2的平面直角坐标系中,画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
(3)根据图象直接写出当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eb8949862b8eb8629408332d7e69908.png)
更新时间:2023-07-03 18:11:09
|
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解答题-作图题
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适中
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【推荐1】如图,四边形
中,
,
.点P从C出发,沿着折线
运动,到达点A停止运动.设点P运动的路程为x,连接
,记
的面积为y,请解答下列问题:
(1)直接写出y关于x的函数关系式,并写出自变量x的取值范围;
(2)在平面直角坐标系中,画出该函数的图象,并写出该函数的一条性质;
(3)结合图像,当
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de293171b5fd31709d8dbebcb6123366.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3d5a916fb3c6134235eca1824df0f25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa5d0162d0ee5286bf0f1996d7180382.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/10/5c42e613-2407-4e3c-b180-c476f7b1c929.png?resizew=380)
(1)直接写出y关于x的函数关系式,并写出自变量x的取值范围;
(2)在平面直角坐标系中,画出该函数的图象,并写出该函数的一条性质;
(3)结合图像,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa5d0162d0ee5286bf0f1996d7180382.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d86ab7c97cd8a0b15ba5efc1be94230.png)
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解答题-问答题
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【推荐2】如图①所示,正方形ABCD的边长为6 cm,动点P从点A出发,在正方形的边上沿A→B→C→D运动,设运动的时间为t(s),三角形APD的面积为S(cm2),S与t的函数图象如图②所示,请回答下列问题:
(1)点P在AB上运动的时间为________s,在CD上运动的速度为________cm/s,三角形APD的面积S的最大值为________cm2;
(2)求出点P在CD上运动时S与t之间的函数表达式;
(3)当t为何值时,三角形APD的面积为10 cm2?
(1)点P在AB上运动的时间为________s,在CD上运动的速度为________cm/s,三角形APD的面积S的最大值为________cm2;
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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,一次函数
的图象与反比例函数
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(2)连接
,
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05621b18b7ffc991d9f30380e2e08fea.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/18/77921f10-b095-4d48-8fac-1abad75fb3d2.png?resizew=191)
(1)求反比例函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05621b18b7ffc991d9f30380e2e08fea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bbf9680f74a9ac5d934304654ce2771.png)
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解答题-问答题
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【推荐2】已知一次函数
.
(1)若该函数的图像经过点
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的值;
(2)若它的图像与两条坐标轴围成的图形的面积等于9,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bebb3b7f47e0decd48e64cb32aaa5903.png)
(1)若该函数的图像经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2e88ebfb5c0d6cce558b515be06404d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)若它的图像与两条坐标轴围成的图形的面积等于9,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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解答题-问答题
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名校
【推荐1】如图,直线y1=2x﹣2的图象与y轴交于点A,直线y2=﹣2x+6的图象与y轴交于点B,两者相交于点C.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/25/d7883024-d9a9-45ba-9bb1-a094c5cb84ec.png?resizew=250)
(1)方程组
的解是 ;
(2)当
与
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(3)求
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(4)在直线
的图象上存在异于点C的另一点P,使得
与
的面积相等,请求出点P的坐标.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/25/d7883024-d9a9-45ba-9bb1-a094c5cb84ec.png?resizew=250)
(1)方程组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9ab83b852bdbe4647c26032682b9973.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcdb7671e6056d842cdc88fb523467f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a1e005baa1be0da8cdf9173a9a46bd1.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(4)在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7211c51b07de22b644df6dde301be330.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a855335176fc36a15017f50a8561348.png)
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解答题-问答题
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名校
【推荐2】如图,已知矩形
的边长为
,
,E、F分别在边
、
上,且
,点P是矩形边上的一个动点,点P从B出发,经过点C,到点D停止.记P点走过的路程为x,四边形
的面积为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/21/21d1314c-ee2e-48d4-8a8e-3eba6e6225d5.png?resizew=327)
(1)请直接写出
关于x的函数关系式,并注明自变量的取值范围;
(2)在如图所示的坐标系中画出
的函数图象,并写出一条该函数的性质;
(3)若关于x的函数
与
的图象有两个交点,请直接写出k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/21/21d1314c-ee2e-48d4-8a8e-3eba6e6225d5.png?resizew=327)
(1)请直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
(2)在如图所示的坐标系中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
(3)若关于x的函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47a4855f57bae217bb6620fbd2cd0511.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
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