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TS EAMCET · Maths · Circle

The equation of a circle passing through \((-6,3)\) and touching both the coordinate axes is

  1. A \(x^2+y^2+20 x-20 y+100=0\)
  2. B \(x^2+y^2+10 x-10 y+25=0\)
  3. C \(x^2+y^2+6 x-6 y+9=0\)
  4. D \(x^2+y^2-30 x+30 y+225=0\)
Verified Solution

Answer & Solution

Correct Answer

(C) \(x^2+y^2+6 x-6 y+9=0\)

Step-by-step Solution

Detailed explanation

Let radius \(=r\) \(\therefore \quad\) Centre \((-r, r)\) Equation on the circle : \(\begin{aligned} & (x+r)^2+(y-r)^2=r^2 \\ & \Rightarrow x^2+y^2+2 x r-2 y r+r^2=0\end{aligned}\) \(\because \quad\) lt passes through \((-6,3)\)…