1 y x 1 y x 2
This presentation is the property of its rightful owner.
Sponsored Links
1 / 1

x/kg PowerPoint PPT Presentation


  • 69 Views
  • Uploaded on
  • Presentation posted in: General

训练题: 1. 某地长途汽车客运公司规定旅客可以随身携带一定质量的行李,如果超过规定质量,则需要购买行李票,行李票费用 y 元是行李质量 x 千克 一次函数,如图所示。求: ( 1 ) y 与 x 之间的函数关系式; ( 2 )旅客最多可免费携带行李的质量是多少?. y/ 元. 10. 8. 6. 4. 2. x/kg. o. 解:设这个一次函数为 y=kx+b. 则有: 当 x=60 时 y=6, 当 x=80 时 y=10. 20. 40. 60. 80. 0. Y=1/5x-6. 60.

Download Presentation

x/kg

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


1 y x 1 y x 2

训练题:1.某地长途汽车客运公司规定旅客可以随身携带一定质量的行李,如果超过规定质量,则需要购买行李票,行李票费用y元是行李质量x千克 一次函数,如图所示。求: (1)y与x之间的函数关系式;(2)旅客最多可免费携带行李的质量是多少?

y/元

10

8

6

4

2

x/kg

o

解:设这个一次函数为y=kx+b.则有:

当x=60时y=6,当x=80时y=10

20

40

60

80

0

Y=1/5x-6

60


  • Login