SOLUTION: Hi there! I am having trouble attempting to solve this question. Graph the circle x^2+y^2-4x+2y-4=0. Thanks for viewing.

Algebra ->  Circles -> SOLUTION: Hi there! I am having trouble attempting to solve this question. Graph the circle x^2+y^2-4x+2y-4=0. Thanks for viewing.      Log On


   

Question 756770: Hi there! I am having trouble attempting to solve this question. Graph the circle x^2+y^2-4x+2y-4=0.
Thanks for viewing.
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
I am having trouble attempting to solve this question. Graph the circle x^2+y^2-4x+2y-4=0.
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It's not a question, it's an equation.
Graphing it is not solving it.
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Graph the circle x^2+y^2-4x+2y-4=0
x%5E2+%2B+4x+%2B+y%5E2+%2B+2y+=+4
Complete the squares for x and y
x%5E2+%2B+4x+%2B+4+%2B+y%5E2+%2B+2y+%2B+1+=+9
%28x%2B2%29%5E2+%2B+%28y+%2B+1%29%5E2+=+3%5E2
The center is (-2,-1)
The radius = 3