幂函数已知一点坐标怎么求函数解析式?如这样的题
如题所述
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/48540923dd54564ea10abfdcb1de9c82d0584fe3?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
追问
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/7e3e6709c93d70cf7421f1e8fadcd100bba12b7f?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
追答你怎么乱采纳的呀
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/b64543a98226cffc917de557bb014a90f703ea84?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
追问你是对的呀。。我再问问。。。
追答这才是答案
追问负的!?
负的!?
喔喔喔喔喔喔!
追答嗯
追问那f(4)等于1/2?
追答嗯
懂了不
追问嗯嗯
追答可以再找个试试
追问唉我是求不来上面a的值 Σ(っ °Д °;)っ
温馨提示:答案为网友推荐,仅供参考
第1个回答 2014-06-07
y=x的a次方,把那一点带入,即可求的
追问这道题能给详细解答么
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/b21c8701a18b87d681a3f3fa050828381e30fd76?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
算不来。。
追答1/2
第2个回答 2014-06-07
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/b58f8c5494eef01f1c2f4020e2fe9925bc317d1f?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
追问。。。你写了什么。。
追答
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/14ce36d3d539b600d60d5752eb50352ac75cb710?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
追问
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/a6efce1b9d16fdfab0ce9d0bb68f8c5495ee7bb0?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
追答一样算,带入