Graph of a Quadratic Function: Key Features

The diagram below shows the graph of \(y=(2-x)(x+5)\). The graph cuts the \(y\)-axis at \(k\) and cuts the \(x\)-axis at the points \(A\) and \(B\).

Find

1. the value of \(k\).
2. the coordinates of point \(A\).
3. the equation of the line of symmetry.