Edexcel C1 2013 June — Question 8

Exam BoardEdexcel
ModuleC1 (Core Mathematics 1)
Year2013
SessionJune
TopicCurve Sketching
TypeDeduce inequality solutions from sketch

8. \begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{5cee336b-d9c9-4b18-ab82-52fdca1eb1e7-09_369_956_287_504} \captionsetup{labelformat=empty} \caption{Figure 1}
\end{figure} Figure 1 shows a sketch of the curve with equation \(y = \mathrm { f } ( x )\) where $$\mathrm { f } ( x ) = ( x + 3 ) ^ { 2 } ( x - 1 ) , \quad x \in \mathbb { R }$$ The curve crosses the \(x\)-axis at \(( 1,0 )\), touches it at \(( - 3,0 )\) and crosses the \(y\)-axis at \(( 0 , - 9 )\)
  1. In the space below, sketch the curve \(C\) with equation \(y = \mathrm { f } ( x + 2 )\) and state the coordinates of the points where the curve \(C\) meets the \(x\)-axis.
  2. Write down an equation of the curve \(C\).
  3. Use your answer to part (b) to find the coordinates of the point where the curve \(C\) meets the \(y\)-axis.