Edexcel C34 2018 October — Question 10

Exam BoardEdexcel
ModuleC34 (Core Mathematics 3 & 4)
Year2018
SessionOctober
TopicComposite & Inverse Functions

10. \begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{c6bde466-61ec-437d-a3b4-84511a98d788-32_492_636_260_660} \captionsetup{labelformat=empty} \caption{Figure 2}
\end{figure} Figure 2 shows a sketch of part of the graph with equation \(y = \mathrm { g } ( x )\), where $$\mathrm { g } ( x ) = \frac { 3 x - 4 } { x - 3 } , \quad x \in \mathbb { R } , \quad x < 3$$ The graph cuts the \(x\)-axis at the point \(A\) and the \(y\)-axis at the point \(B\), as shown in Figure 2 .
  1. State the range of g .
  2. State the coordinates of
    1. point \(A\)
    2. point \(B\)
  3. Find \(\operatorname { gg } ( x )\) in its simplest form.
  4. Sketch the graph with equation \(y = | \mathrm { g } ( x ) |\) On your sketch, show the coordinates of each point at which the graph meets or cuts the axes and state the equation of each asymptote.
  5. Find the exact solution of the equation \(| \mathrm { g } ( x ) | = 8\)