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#1 2013-02-27 14:01:09

Al-Allo
Member
Registered: 2012-08-23
Posts: 293

Analytic Geometry

Hi, need help with this problem, I have no idea how to even start it.

a)Determining the coordinates of the point N, situated twice near the end R (8.2) as the end S (-1.2) of RS.

Here

http://img72.imageshack.us/img72/954/segment.jpg

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#2 2013-02-27 21:56:20

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,638

Re: Analytic Geometry

Hi;

Do you mean twice as close to R(8,2) as S(-1,2)?

That drawing looks backwards. Shouldn't S be to the left of R?


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

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#3 2013-03-01 08:13:40

Al-Allo
Member
Registered: 2012-08-23
Posts: 293

Re: Analytic Geometry

bobbym wrote:

Hi;

Do you mean twice as close to R(8,2) as S(-1,2)?

That drawing looks backwards. Shouldn't S be to the left of R?

It means it's closer to R then it is to S. (twice closer)

There was no drawing in the problem, I just did it myself and added the letter in alphabetical order.
If there is something you don't understand in my text, tell me and I'll try to reformulate it. (

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#4 2013-03-01 08:26:54

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,638

Re: Analytic Geometry

Hi;

I understand what you want but have to point out that a coordinate of (-1,2) is to the left of (8,2).


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

Online

#5 2013-03-01 12:06:47

bob bundy
Moderator
Registered: 2010-06-20
Posts: 6,258

Re: Analytic Geometry

hi Al-Allo

How to start?

(i) Make a graph and plot the points.

(ii) distance between is 9 units

for twice as close divide distance into 3 parts

give 2 parts to S and 1 to R

see diagram.

Bob

View Image: AL2.gif

You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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