SOLUTION: htis has to d with circles
x^2+y^2+2x+4y=9
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Question 122945: htis has to d with circles
x^2+y^2+2x+4y=9
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given equation
Add to both sides
Complete the square for the x terms
Complete the square for the y terms
Combine like terms
Add to both sides
Combine like terms
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Notice how the equation is now in the form . This means that this conic section is a circle where (h,k) is the center and is the radius.
So the circle has these properties:
CENTER: (,)
Radius:
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