Higher June 2024 Paper 3 Q7
7 Draw the graph of \(\quad y = 1 - \dfrac{1}{2}x \quad\) for values of \(x\) from \(-2\) to 4 [3 marks]
| Answer | Mark | Comments |
|---|---|---|
| Any two of \((-2, 2) \quad \left(-1, 1\dfrac{1}{2}\right) \quad (0, 1) \quad \left(1, \dfrac{1}{2}\right)\) \((2, 0) \quad \left(3, -\dfrac{1}{2}\right) \quad (4, -1)\) or other correct points | M1 | may be seen in a table with values assigned to \(x\) and \(y\) implied by points plotted |
| At least two of their points plotted | M1 | \(\pm\dfrac{1}{2}\) square implied by a line passing through two of their points |
| Single straight line from \((-2, 2)\) to \((4, -1)\) | A1 | \(\pm\dfrac{1}{2}\) square ignore line beyond \((-2, 2)\) and \((4, -1)\) |
Additional guidance
| Ignore extra points listed or plotted if required line is drawn | |
| M marks can be awarded even if incorrect line drawn | |
| Correct line from \((-2, 2)\) to \((4, -1)\) within tolerance with no points plotted | M1M1A1 |