5 A curve has equation \(y = \frac { 1 } { x - 3 } + x\).
- Find \(\frac { \mathrm { d } y } { \mathrm {~d} x }\) and \(\frac { \mathrm { d } ^ { 2 } y } { \mathrm {~d} x ^ { 2 } }\).
- Find the coordinates of the maximum point \(A\) and the minimum point \(B\) on the curve.