June 2024 Paper 3 Q3
3 One of the graphs shown below cannot have an equation of the form
\[y = a^x \qquad \text{where } a \gt 0\]Identify this graph.
Tick (✓) one box. [1 mark]
| Scheme | Marks | AO |
|---|---|---|
| Ticks 3rd box | B1 | 2.2a |
| (1 mark) |
Typical solution
The 3rd graph: a decreasing curve lying below the \(x\)-axis, crossing the \(y\)-axis below \(O\)