4MA0 Foundation June 2011 Paper 2 Q18
18 On the grid, draw the graph of \(y = 2x - 1\)
(4)
| Scheme | Marks |
|---|---|
| fully correct line from \(-2 \leqslant x \leqslant +2\) | B4 |
| line from \(-2 \leqslant x \leqslant +2\) with grad 2 or \(y\) intercept (0, −1) | B3 |
| 3 correct points, calculated or plotted | B2 |
| 2 correct points, calculated or plotted | B1 |
| (4) | |
| (Total 4 marks) |
Notes
B4: line passes through (−2, −5) & (2, 3)
B2: e.g 3 from (−3, −7) (−2, −5) (−1, −3) (0, −1) (1, 1) (2, 3) (3, 5)
B1: e.g 2 from (−3, −7) (−2, −5) (−1, −3) (0, −1) (1, 1) (2, 3) (3, 5)