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Re: How to plot a parellal line


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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