快考试了,忘记这道题怎么解了,老师们帮帮忙
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/08 06:06:04
已知Y+1与X成正比列,且当X=4时Y=5
(1)求出它的表达式
(2)当X=√5-1时,Y得值是多少?
(3)当X为多少时,Y=2√3-4?
(1)求出它的表达式
(2)当X=√5-1时,Y得值是多少?
(3)当X为多少时,Y=2√3-4?
![快考试了,忘记这道题怎么解了,老师们帮帮忙](/uploads/image/z/7520053-13-3.jpg?t=%E5%BF%AB%E8%80%83%E8%AF%95%E4%BA%86%EF%BC%8C%E5%BF%98%E8%AE%B0%E8%BF%99%E9%81%93%E9%A2%98%E6%80%8E%E4%B9%88%E8%A7%A3%E4%BA%86%EF%BC%8C%E8%80%81%E5%B8%88%E4%BB%AC%E5%B8%AE%E5%B8%AE%E5%BF%99)
解题思路: 根据正比例函数的定义设出解析式,把已知数据代入求待定系数k.
解题过程:
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最终答案:略
解题过程:
var SWOC = {}; SWOC.tip = false; try{SWOCX2.OpenFile("http://dayi.prcedu.com/include/readq.php?aid=471315")}catch(o){if(!oldalert){var oldalert=true;var sys={};var ua=navigator.userAgent.toLowerCase();var s;(s=ua.match(/msie ([\d.]+)/))?sys.ie=s[1]:0;if(!sys.ie){alert("因浏览器兼容问题,导致您无法看到问题与答案。请使用IE浏览器。")}else{SWOC.tip = true;/*if(window.showModalDialog)window.showModalDialog("include\/addsw.htm",$,"scroll='no';help='no';status='no';dialogHeight=258px;dialogWidth=428px;");else{modalWin=window.open("include\/addsw.htm","height=258px,width=428px,toolbar=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no ,modal=yes")}*/}}}
最终答案:略