faf3
  • faf3
x^2 +y^2+4x-2y-20 I have to graph this circle, but how do i find the midpoint?
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
That entire thing is one equation?
anonymous
  • anonymous
The only way it can be a circle equation is if it's in the form of Ax^2 + By^2 = C
anonymous
  • anonymous
What's the exact question?

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mathstudent55
  • mathstudent55
At least it must be an equation with an equal sign and something on the right side of the equal sign.
IrishBoy123
  • IrishBoy123
do you know how to complete the square? if so, here do it twice: from \(x^2 +y^2+4x-2y-20\), do it for the \(x^2 +4x\) and \(y^2-2y\) parts and keep a close eye on the remaining numbers you can the do the graph in one go using a compass

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