SOLUTION: Graph: x^2 - 4x + y^2 + 6y + 4 = 0

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Question 544554: Graph: x^2 - 4x + y^2 + 6y + 4 = 0
Answer by KMST(5328) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2+-+4x+%2B+y%5E2+%2B+6y+%2B+4+=+0
Adding 9 to both sides we get
%28x%5E2+-+4x+%2B+4%29+%2B+%28y%5E2+%2B+6y+%2B+9%29+=+9 ---> %28x+-+2%29%5E2+%2B+%28y+%2B+3%29%5E2+=+3%5E2
You could read that last equation as meaning that the distance between a point (x,y) and point (2,-3) is 3.
That is the equation of a circle of radius 3, centered at (2,-3).