Question

Functions \(f\) and \(g\) are defined by \[\begin{align*} f &\colon x \to x(x-1), \\ g &\colon x \to (x-1)(3x - 5), \end{align*}\]

where \(x \in \mathbb{R}\) in each case.

  1. Find the solution set, \(S\), of the inequality \(f(x) \ge g(x)\).

  2. Sketch the graph of \(y = f(x) - g(x)\) for \(x \in S\), and state the greatest and least values of \(f(x) - g(x)\) for \(x \in S\).