Atickettoaschooldanceis$8.Usua-查字典问答网
分类选择

来自洪丽君的问题

  Atickettoaschooldanceis$8.Usually,300studentsattend.Thedancecommitteeknowsthatforevery$1increaseinthepriceofaticket,30fewerstudentsattendthedance.Whatticketpricewillmaximizetherevenue?

  Atickettoaschooldanceis$8.Usually,300studentsattend.Thedancecommitteeknowsthatforevery$1increaseinthepriceofaticket,30fewerstudentsattendthedance.Whatticketpricewillmaximizetherevenue?

1回答
2020-04-0522:03
我要回答
提示:回答问题需要登录哦!
金先级

  setticketpriceasxy=(300-30(x-8)/1)*Xy=-30x的平方+540x+0写成顶点式y=-30(x-9)平方+2430inordertoletygetthemaximumvalueletX-9=0thereforewhenx=9,yhasthemaximumvalue243011年级的...

2020-04-05 22:06:09
大家都在问
最新问答