AQA C3 2012 June — Question 7 11 marks

Exam BoardAQA
ModuleC3 (Core Mathematics 3)
Year2012
SessionJune
Marks11
PaperDownload PDF ↗
TopicFunction Transformations
TypeMultiple separate transformations (sketch-based, modulus involved)
DifficultyStandard +0.3 This is a standard C3 function transformations question covering modulus transformations and composite transformations. Parts (a) and (b) require routine application of |f(x)| and f(|x|) rules, part (c) tests understanding of translation and stretch (standard bookwork), and part (d) applies these transformations to a point. While multi-part, each component is a textbook exercise requiring recall and direct application rather than problem-solving or insight, making it slightly easier than average.
Spec1.02s Modulus graphs: sketch graph of |ax+b|1.02w Graph transformations: simple transformations of f(x)1.02x Combinations of transformations: multiple transformations

7 The sketch shows part of the curve with equation \(y = \mathrm { f } ( x )\). \includegraphics[max width=\textwidth, alt={}, center]{d3c66c34-b09c-4223-8383-cf0a68419bf9-5_632_1029_712_541}
  1. On Figure 2 on page 6, sketch the curve with equation \(y = | \mathrm { f } ( x ) |\).
  2. On Figure 3 on page 6, sketch the curve with equation \(y = \mathrm { f } ( | x | )\).
  3. Describe a sequence of two geometrical transformations that maps the graph of \(y = \mathrm { f } ( x )\) onto the graph of \(y = \frac { 1 } { 2 } \mathrm { f } ( x + 1 )\).
  4. The maximum point of the curve with equation \(y = \mathrm { f } ( x )\) has coordinates \(( - 1,10 )\). Find the coordinates of the maximum point of the curve with equation \(y = \frac { 1 } { 2 } \mathrm { f } ( x + 1 )\).
    (2 marks)
    1. \begin{figure}[h]
      \captionsetup{labelformat=empty} \caption{Figure 2} \includegraphics[alt={},max width=\textwidth]{d3c66c34-b09c-4223-8383-cf0a68419bf9-6_785_1022_358_548}
      \end{figure}
    2. \begin{figure}[h]
      \captionsetup{labelformat=empty} \caption{Figure 3} \includegraphics[alt={},max width=\textwidth]{d3c66c34-b09c-4223-8383-cf0a68419bf9-6_776_1022_1395_548}
      \end{figure}

7 The sketch shows part of the curve with equation $y = \mathrm { f } ( x )$.\\
\includegraphics[max width=\textwidth, alt={}, center]{d3c66c34-b09c-4223-8383-cf0a68419bf9-5_632_1029_712_541}
\begin{enumerate}[label=(\alph*)]
\item On Figure 2 on page 6, sketch the curve with equation $y = | \mathrm { f } ( x ) |$.
\item On Figure 3 on page 6, sketch the curve with equation $y = \mathrm { f } ( | x | )$.
\item Describe a sequence of two geometrical transformations that maps the graph of $y = \mathrm { f } ( x )$ onto the graph of $y = \frac { 1 } { 2 } \mathrm { f } ( x + 1 )$.
\item The maximum point of the curve with equation $y = \mathrm { f } ( x )$ has coordinates $( - 1,10 )$. Find the coordinates of the maximum point of the curve with equation $y = \frac { 1 } { 2 } \mathrm { f } ( x + 1 )$.\\
(2 marks)\\
(a)

\begin{figure}[h]
\begin{center}
\captionsetup{labelformat=empty}
\caption{Figure 2}
  \includegraphics[alt={},max width=\textwidth]{d3c66c34-b09c-4223-8383-cf0a68419bf9-6_785_1022_358_548}
\end{center}
\end{figure}

(b)

\begin{figure}[h]
\begin{center}
\captionsetup{labelformat=empty}
\caption{Figure 3}
  \includegraphics[alt={},max width=\textwidth]{d3c66c34-b09c-4223-8383-cf0a68419bf9-6_776_1022_1395_548}
\end{center}
\end{figure}
\end{enumerate}

\hfill \mbox{\textit{AQA C3 2012 Q7 [11]}}