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

Al-Allo
Member
Registered: 2012-08-23
Posts: 294

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: 87,267

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.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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

Al-Allo
Member
Registered: 2012-08-23
Posts: 294

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: 87,267

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.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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

bob bundy
Moderator
Registered: 2010-06-20
Posts: 6,429

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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