Question 6 - A-Level Maths

6. 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 \(y = \mathrm { f } ( x )\).