Math Is Fun Forum

point

Member

Registered: 2015-01-27

Posts: 3

function point

see the attachment,and we'll talk about it
https://onedrive.live.com/view.aspx?cid=0700D973D1A1F1E0&resid=700D973D1A1F1E0!111&app=WordPdf

Bob

Administrator

Registered: 2010-06-20

Posts: 10,643

Re: function point

hi point,

Welcome to the forum. 

I am always a bit wary when someone posts a link like this.  You never quite know where it may lead.  Thankfully yours is genuine. 

But you could post your work directly using LaTex http://www.mathisfunforum.com/viewtopic.php?id=4397

This will make it easier for people to follow, and, by copying out sections, they can add, and comment more easily.

Bob

---

Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob

point

Member

Registered: 2015-01-27

Posts: 3

Re: function point

hi point,

This will make it easier for people to follow, and, by copying out sections, they can add, and comment more easily.

Bob

I like the simple, so I give a link, and the ambiguities can respond

https://onedrive.live.com/view.aspx?cid … pp=WordPdf

point

Member

Registered: 2015-01-27

Posts: 3

Re: function point

solution of the task -

we have the numerical line , on it is straight line AB , point A is located on a number of numerical line , point B anywhere of numerical line , how to describe this as a function ?

A=a , B=x , AB=y , y=|a-x| or y=|x-a|

example
a=5 , x=(2,5,10)
y=|5-2|=3 or y=|2-5|=3 , length straight AB=3
y=|5-5|=0 or y=|5-5|=0 , no straight AB
y=|5-10|=5 or y=|10-5|=5 , length straight AB=5

we have the number line , on it is straight line AB , point A anywhere of number line , point B anywhere of number line , how to describe this as a function ?