Foundation November 2023 Paper 2 Q13
13
(a) Work out.
\(3^4\) [2]
(b) Simplify.
\(\dfrac{5x^2}{x}\) [1]
(c) Rearrange this formula to make \(x\) the subject.
\(y = \dfrac{x}{5} + 2\) [2]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 81 | 2 | B1 for \(3 \times 3 \times 3 \times 3\) soi | e.g. \(3^2 \times 3^2\) or \(9 \times 9\) |
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \(5x\) final answer | 1 | Do not accept \(\frac{5x}{1}\) but condone \(5x^1\) | |
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \(x = 5y - 10\) or \(x = 5(y - 2)\) final answer | 2 | B1 for answer \(5y - 10\) or \(5(y - 2)\) or M1 for a correct first step \(5y = x + 10\) or \(y - 2 = \frac{x}{5}\) If 0 scored SC1 for correct step to final answer FT incorrect first step | SC only awarded for 2 step attempts |