What is x^2+y^2-6.81x-16.22y-69.62=0 ?

The solution to x^2+y^2-6.81x-16.22y-69.62=0 is Circle with (a,b)=(3.405,8.11),r=12.12378…

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x^2+y^2-6.81x-16.22y-69.62=0

x^{2} + y^{2} - 6.81 x - 16.22 y - 69.62 = 0

(a, b) = (3.405, 8.11), r = 12.12378 \dots

Solution steps

x^{2} + y^{2} - 6.81 x - 16.22 y - 69.62 = 0

Rewrite

x^{2} + y^{2} - 6.81 x - 16.22 y - 69.62 = 0

in the form of the standard circle equation

(x - 3.405)^{2} + (y - 8.11)^{2} = 12.12378 \dots^{2}

Therefore the circle properties are:

(a, b) = (3.405, 8.11), r = 12.12378 \dots

(x - 3)^{2} + (y + 3)^{2} = 8

x^{2} - 8 x + y^{2} + 6 y + 21 = 0

x^{2} - 6 x + y^{2} + 4 y = 3

5 x^{2} + 20 x + 5 y^{2} = 35

x^{2} + y^{2} - 14 x - 4 y - 47 = 0

What is x^2+y^2-6.81x-16.22y-69.62=0 ?
The solution to x^2+y^2-6.81x-16.22y-69.62=0 is Circle with (a,b)=(3.405,8.11),r=12.12378…