必须掌握求函数图像解析式的方
追答顶点式,一般式,双根式
会互相转换
追问这个知道1.2问会做,第三小问有困难
追答第三问关于什么的?
追问一种是图形变换
一种是三角形相似
一种是图形判定
一种是最
值
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/a2cc7cd98d1001e9d374ae89ba0e7bec55e797e8?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/adaf2edda3cc7cd965088e5f3b01213fb80e910b?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/1e30e924b899a901c0ece1b01f950a7b0308f55f?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/6a600c338744ebf8a0c1deb9dbf9d72a6159a780?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
都难死了
追答相似你就把对应边找好就行
追问关键是我不知道咋找点坐标
追答最值如果是面积的最值,你就要想方设法的保证定量乘变量
点坐标你就设这点的横坐标为a,把它带入解析式求它的纵坐标
点坐标你就设这点的横坐标为a,把它带入解析式求它的纵坐标
你一定要学会用代数式表示线段长和点坐标
追问嗯
我再做题吧,谢了,
追答又不会可以找我
但要7号以后
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