What is the radius x^2-2x+y^2-2y=23 ?

The radius x^2-2x+y^2-2y=23 is r=5

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radius x^2-2x+y^2-2y=23

radius

x^{2} - 2 x + y^{2} - 2 y = 23

r = 5

Solution steps

x^{2} - 2 x + y^{2} - 2 y = 23

Rewrite

x^{2} - 2 x + y^{2} - 2 y = 23

in the form of the standard circle equation

(x - 1)^{2} + (y - 1)^{2} = 5^{2}

Therefore the circle properties are:

(a, b) = (1, 1), r = 5

And the radius is:

r = 5

(x - 1)^{2} + (y + 3)^{2} = 4

x^{2} + y^{2} - 6 x - 8 y - 11 = 0

x^{2} - 10 x + y^{2} + 2 y + 10 = 0

x^{2} - 4 x + y^{2} + 8 y = - 4

(x + 5)^{2} + (y + 4)^{2} = 9