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polet [3.4K]
3 years ago
8

2. The equation of a circle is x^2 + 2x + y^2 + 6y = 0.

Mathematics
1 answer:
pentagon [3]3 years ago
8 0
Answer:

a)
{x}^{2}  + 2x +  {y}^{2}  + 6y = 0
{x}^{2}  + 2x + 1 +  {y}^{2}  + 6y + 9 = 10
{(x + 1)}^{2}  +  {(y + 3)}^{2}  = 10
b)
center I(-1;-3)

radius = \sqrt{10}
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