1.1. The curve $G$ has equation $y=1-{x}^{3}-6{x}^{2}-9x$.

Part of the graph of $G$ is shown below.

Write the coordinates of A.

1.2. Points B and C are stationary points on $G$.

Find the coordinates of points B and C, stating the nature of the stationary point in each case. 

1.3. For which values of $x$ is the gradient of the curve $G$ negative?