| Exam Board | WJEC |
|---|---|
| Module | Unit 1 (Unit 1) |
| Year | 2024 |
| Session | June |
| Marks | 4 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Function Transformations |
| Type | Transformation of specific function type |
| Difficulty | Easy -1.3 This is a straightforward graph sketching question requiring only basic knowledge of exponential functions and horizontal translations. Students need to recall that 3^x passes through (0,1) and that 3^(x+1) is a shift left by 1 unit passing through (0,3). No calculation beyond substituting x=0 is needed, making this easier than average. |
| Spec | 1.02w Graph transformations: simple transformations of f(x)1.06a Exponential function: a^x and e^x graphs and properties |
\begin{enumerate}[label=(\alph*)]
\item Sketch the graph of $y = 3^x$. Clearly label the coordinates of the point where the graph crosses the $y$-axis. [2]
\item On the same set of axes, sketch the graph of $y = 3^{(x+1)}$, clearly labelling the coordinates of the point where the graph crosses the $y$-axis. [2]
\end{enumerate}
\hfill \mbox{\textit{WJEC Unit 1 2024 Q11 [4]}}