A curve \(C\) has equation
\(y=\frac{5\left(x^{2}-x-2\right)}{x^{2}+5 x+10} .\)

Find the coordinates of the points of intersection of \(C\) with the axes.

Show that, for all real values of \(x,-1 \leqslant y \leqslant 15\).

Sketch \(C\), stating the coordinates of any turning points and the equation of the horizontal asymptote.

[Question 11 is printed on the next page.]