Foundation November 2019 Paper 1 Q17
17 Draw the graph of \(\quad y = 3x - 1 \quad\) for values of \(x\) from \(-1\) to 3 [3 marks]
| Answer | Mark | Comments |
|---|---|---|
| Any two of \((-1, -4)\), \((0, -1)\), \((1, 2)\), \((2, 5)\) and \((3, 8)\) or other correct points | M1 | may be seen in a table may be implied by points plotted |
| At least two correct points plotted correctly or at least two of their points plotted correctly | M1 | implied by correct line which does not have to extend from \((-1, -4)\) to \((3, 8)\) \(\pm\dfrac{1}{2}\) small square |
| Straight, ruled line from \((-1, -4)\) to \((3, 8)\) | A1 | \(\pm\dfrac{1}{2}\) small square ignore line beyond \((-1, -4)\) and \((3, 8)\) |
Additional guidance
Ignore extra points listed or plotted
M marks can be scored even if wrong line drawn
M marks are independent, the second mark can be awarded for correct plotting of two of their points