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Re: Plot this?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg109551] Re: Plot this?
  • From: Laszlo Sturmann <lschara at sonic.net>
  • Date: Wed, 5 May 2010 06:04:34 -0400 (EDT)

Trevor Rabey wrote:
> I am new to Mathematica and going at snail's pace.
> I would like to plot:
>
> 8x - x^2 + 14y - y^2 = 49
>
> Anyone?
>
> --
> Trevor Rabey
>
>
>   
The points which satisfy the condition obviously lay on a circle

(x-4)^2+(y-7)^2=16 and you can plot it with

ContourPlot[8 x - x^2 + 14 y - y^2 == 49, {x, -5, 10}, {y, 0, 15}]

LS





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