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Re: How to plot a parellal line


Thank you Bob, Valeri, Dimitris, Jean.

Regards,

--- Bob Hanlon <hanlonr at cox.net> wrote:

> f[x_]:=x^2+7x-30;
> 
> Plot[f[x],{x,0,10},PlotStyle->Blue,
>     Epilog->{Red,Line[{{5,f[0]},{5,f[10]}}],
>        
> Green,AbsolutePointSize[6],Point[{5,f[5]}]}];
> 
> 
> Bob Hanlon
> 
> ---- Swati Agrawal <swati06math at yahoo.com> wrote: 
> > Dear Mathgroup,
> > 
> > I am a new Mathematica user.  I can't find a way
> to graph a 
> > line parallel to the y or something like x-5=0.
> > 
> > Any help would be appreciated.
> > 
> > Jyoti.
> 
> 


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