9 The equation of a circle is \(x ^ { 2 } + y ^ { 2 } + 6 x - 2 y - 26 = 0\).
- Find the coordinates of the centre of the circle and the radius. Hence find the coordinates of the lowest point on the circle.
- Find the set of values of the constant \(k\) for which the line with equation \(y = k x - 5\) intersects the circle at two distinct points.