Equation of a Circle

(4, 2)

(-4, -2)

(-4, 2)

(4, -2)

2.5

5

25

50

(7, 0)

(-7, 0)

(7, 1)

(-7, -1)

3.5

7

14

49

(0, 10)

(0, -10)

(1, 10)

(1, -10)

$\left(x-5\right)^2+\left(y-3\right)^2=2$

$\left(x-5\right)^2+\left(y-3\right)^2=4$

$\left(x+5\right)^2+\left(y+3\right)^2=2$

$\left(x+5\right)^2+\left(y+3\right)^2=4$

 $x^2+\left(y+3\right)^2=2.5$ 

 $x^2+\left(y-3\right)^2=5$ 

 $x^2+\left(y+3\right)^2=25$ 

 $x^2+\left(y-3\right)^2=25$ 

 $\left(x-4\right)^2+y^2=9$ 

 $\left(x+4\right)^2+y^2=9$ 

 $\left(x-4\right)^2+y^2=36$ 

 $\left(x+4\right)^2+y^2=36$