Question

Q.2 Find the equation of the circle concentric with x² + y - 8x-4y-10 = 0 and passing
through the point (2,3).
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Answer 1

Answer:

Answer

Center of circle x

2

+y

2

−4x−6y=0 is (2,3)

Now equation of circle concentric with x

2

+y

2

+8x+10y−7=0 is

x

2

+y

2

+8x+10y+c=0

And as it passes through (2,3)

Then c=−59

∴ equation of circle would be x

2

+y

2

+8x+10y−59=0