The equation obtained by transforming $x^2+y^2-6 x+10 y-2=0$ to the parallel axis through $(3,-5)$ is

The equation obtained by transforming $x^2+y^2-6 x+10 y-2=0$ to the parallel axis through $(3,-5)$ is
  1. $x^2+y^2=16$
  2. $x^2+y^2=9$
  3. $x^2+y^2=25$
  4. $x^2+y^2=36$

Solution

Given equation is $ \begin{aligned} x^2+y^2-6 x+10 y-2 & =0 \\ (x-3)^2+(y+5)^2 & =36 \end{aligned} $ The equation obtained by transforming $(x-3)^2+(y+5)^2=36$ to parallel axis through $(3,-5)$ is Put $x-3=h$ and $y+5=k$ $ \therefore h^2+k^2=36 $ i.e. $x^2+y^2=36$

Asked in: AP EAMCET 2021 (25 Aug Shift 1)

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