2.
$$f ( x ) = 11 - 4 x - 2 x ^ { 2 }$$
- Express \(\mathrm { f } ( x )\) in the form
$$a + b ( x + c ) ^ { 2 }$$
where \(a , b\) and \(c\) are integers to be found.
- Sketch the graph of the curve \(C\) with equation \(y = \mathrm { f } ( x )\), showing clearly the coordinates of the point where the curve crosses the \(y\)-axis.
- Write down the equation of the line of symmetry of \(C\).