(adsbygoogle = window.adsbygoogle || []).push({}); How to determine "b" in a conic hyperboal graph

1. The problem statement, all variables and given/known data

http://img143.imageshack.us/img143/3391/91667159.jpg [Broken]

(x-1)^{2}/2^{2}- y^{2}/b^{2}=1

I can't find any good point for me to solve b..I don't know what to do..

Is there any way to solve b without using the point?

2. Relevant equations

3. The attempt at a solution

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# How to determine b in a conic hyperboal graph

**Physics Forums | Science Articles, Homework Help, Discussion**