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The circle passing through ( 1 , - 2 ) and touching the axis of x at ( 3 , 0 ) also passes through the point

Options

  1. A5 , - 2
  2. B- 2 ,   5
  3. C- 5 ,   2
  4. D2 ,   - 5

Correct answer

A. 5 , - 2

Step-by-step solution

Alt : Equation of circle ( x − 3 ) 2 + ( y + r ) 2 = r 2 Passes through 1 ,   - 2 ∴ r = 2 ∴ Circle ( x − 3 ) 2 + ( y + 2 ) 2 = 4 Passes through ( 5 , - 2 ) .

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