Edexcel AS Paper 1 Specimen — Question 12

Exam BoardEdexcel
ModuleAS Paper 1 (AS Paper 1)
SessionSpecimen
TopicInequalities

12. \begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{fa7abe9f-f5c0-4578-afd1-73176c717536-24_798_792_246_639} \captionsetup{labelformat=empty} \caption{Figure 3}
\end{figure} Figure 3 shows a sketch of the curve \(C\) with equation \(y = 3 x - 2 \sqrt { x } , x \geqslant 0\) and the line \(l\) with equation \(y = 8 x - 16\) The line cuts the curve at point \(A\) as shown in Figure 3.
  1. Using algebra, find the \(x\) coordinate of point \(A\).
  2. \begin{figure}[h]
    \includegraphics[alt={},max width=\textwidth]{fa7abe9f-f5c0-4578-afd1-73176c717536-24_636_780_1585_644} \captionsetup{labelformat=empty} \caption{Figure 4}
    \end{figure} The region \(R\) is shown unshaded in Figure 4. Identify the inequalities that define \(R\).