Foundation November 2023 Paper 1 Q14
14 On the grid, draw the graph of \(\ y = 4x - 1\ \) for values of \(x\) from \(-2\) to 2 (3)
| Answer | Mark | Mark scheme |
|---|---|---|
| Graph drawn | B3 | for a correct line between \(x = -2\) and \(x = 2\) |
| (B2 | for a correct straight-line segment through at least 3 of \((-2, -9), (-1, -5), (0, -1), (1, 3), (2, 7)\) or for all these points plotted but not joined or for a line drawn with a positive gradient through \((0, -1)\) and clear intention to use a gradient of 4, eg line through \((0, -1)\) and \((1, 3)\)) | |
| (B1 | for at least 2 correct points stated or plotted or for a line drawn with a positive gradient through \((0, -1)\) or a line with gradient 4) |
Additional guidance
Accept freehand line drawn
Ignore any incorrect points.
Table of values
| \(x\) | \(-2\) | \(-1\) | 0 | 1 | 2 |
| \(y\) | \(-9\) | \(-5\) | \(-1\) | 3 | 7 |
(B1) Ignore any incorrect points.
Coordinates may be in a table or working.
Do not accept \(y = -1\) drawn