$\"\"$

The center of circel is $\"\"$ and its solution point is $\"\"$ .

The radius of the circle is the distance between $\"\"$ .

$\"\"$ (Apply distance formula: $\"\"$ )

$\"\"$ (Substitute $\"\"$ )

$\"\"$

$\"\"$ .

$\"\"$

The standard form of the circle is $\"\"$ .

$\"\"$

$\"\"$ (Substitute $\"\"$ )

$\"\"$ $\"\"$

The equation of the circle is $\"\"$ .