Sketch the graph of \(y = (x - 1)(x + 5)\).
Indicate clearly the coordinates of points where the graph crosses the \(x\)- and \(y\)-axes, the coordinates of the turning point and write down the equation of the line of symmetry of the curve.[5]
Hence, or otherwise, solve the inequality \(x^2 + 4x - 5 \le 0\).[1]
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