Find the equation of circle of a circle which passes through the points `(0,-6), (1,1) and (7,-7)`.

Explanation

To find the equation of the circle that passes through the points (0, -6), (1, 1), and (7, -7), we will follow these steps:

### Step 1: General Equation of the Circle
The general equation of a circle can be expressed as:
\[ x^2 + y^2 + 2gx + 2fy + c = 0 \]
where \(g\), \(f\), and \(c\) are constants that we need to determine.
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