What is (x-1)^2+(y-9)^2=15 ?

The solution to (x-1)^2+(y-9)^2=15 is Circle with (a,b)=(1,9),r=sqrt(15)

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(x-1)^2+(y-9)^2=15

(x - 1)^{2} + (y - 9)^{2} = 15

(a, b) = (1, 9), r = 15

Solution steps

(x - 1)^{2} + (y - 9)^{2} = 15

Rewrite

(x - 1)^{2} + (y - 9)^{2} = 15

in the form of the standard circle equation

(x - 1)^{2} + (y - 9)^{2} = (15)^{2}

Therefore the circle properties are:

(a, b) = (1, 9), r = 15

(x - 3)^{2} + (y - 4)^{2} = 7

169 - x^{2} - y^{2} > 0

(x + 8)^{2} + (y + 5)^{2} = 9

x^{2} + y^{2} = x + 9 y

8 x^{2} + 8 y^{2} = 120

What is (x-1)^2+(y-9)^2=15 ?
The solution to (x-1)^2+(y-9)^2=15 is Circle with (a,b)=(1,9),r=sqrt(15)