6 The curve \(C\) has equation
$$y = \frac { x ^ { 2 } + a x - 1 } { x + 1 }$$
where \(a\) is constant and \(a > 1\).
- Find the equations of the asymptotes of \(C\).
- Show that \(C\) intersects the \(x\)-axis twice.
- Justifying your answer, find the number of stationary points on \(C\).
- Sketch \(C\), stating the coordinates of its point of intersection with the \(y\)-axis.