3. Given that \(\mathrm { f } ( x ) = 15 - 7 x - 2 x ^ { 2 }\),
- find the coordinates of all points at which the graph of \(y = \mathrm { f } ( x )\) crosses the coordinate axes.
- Sketch the graph of \(y = \mathrm { f } ( x )\).
- Calculate the coordinates of the stationary point of \(\mathrm { f } ( x )\).
[0pt]
[P1 June 2002 Question 3]