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COMEDK2024MathematicsCircle

The length of y -intercept of the circle x^2+y^2-6 x+4 y+3=0 is

Options

  1. A2
  2. B2 2
  3. C2 7
  4. D2 6

Correct answer

A. 2

Step-by-step solution

General equation of circle is x^2+y^2+2 g x+2 f y+c=0 On comparing with given equation x^2+y^2-6 x+4 y+3=0 , we get aligned g & =-3 f & =2 c & =3 y -intercept & =2 f^2-c & =2 4-3 =2 1 =2 aligned

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