$\"\"$

Given that center (C) = (h,k) = $\"\"$ and $\"\"$ .

radius $\"\"$

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

$\"\"$ (Divide: $\"\"$ ) $\"\"$ $\"\"$ (Equation of a circle)

$\"\"$ (Substitute $\"\"$ , $\"\"$ and $\"\"$ )

$\"\"$ (Simplify)

$\"\"$ (Evalute powers) $\"\"$

The Equation of a circle is $\"\"$ .