What is (x+2)^2+(y+9)^2=70 ?

The solution to (x+2)^2+(y+9)^2=70 is Circle with (a,b)=(-2,-9),r=sqrt(70)

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(x+2)^2+(y+9)^2=70

(x + 2)^{2} + (y + 9)^{2} = 70

(a, b) = (- 2, - 9), r = 70

Solution steps

(x + 2)^{2} + (y + 9)^{2} = 70

Rewrite

(x + 2)^{2} + (y + 9)^{2} = 70

in the form of the standard circle equation

(x - (- 2))^{2} + (y - (- 9))^{2} = (70)^{2}

Therefore the circle properties are:

(a, b) = (- 2, - 9), r = 70

x^{2} + y^{2} - 8 x - 6 y = 20

x^{2} + y^{2} - 6 x + 6 y + 17 = 0

x^{2} + y^{2} - 40 x + 144 = 0

x^{2} + (y + 6)^{2} = \frac{3}{4}

x^{2} + y^{2} - 12 x + 2 y = - 21

What is (x+2)^2+(y+9)^2=70 ?
The solution to (x+2)^2+(y+9)^2=70 is Circle with (a,b)=(-2,-9),r=sqrt(70)