4MA0 Foundation June 2017 Paper 1 Q19
19 On the grid, draw the graph of \(y = 2x + 4\) for values of \(x\) from −3 to 3
(3)
| Scheme | Marks |
|---|---|
| (−3, −2) (−2, 0) (−1, 2) (0, 4) (1, 6) (2, 8) (3, 10) Answer: Correct line between \(x = -3\) and \(x = 3\) | B3 |
| (3) | |
| (3 marks) |
Notes
B3: for a correct line between \(x = -3\) and \(x = 3\) (inclusive)
If not B3 then award B2 for
a correct line through at least 3 of
(−3, −2) (−2, 0) (−1, 2) (0, 4) (1, 6) (2, 8) (3, 10) or
for all above points plotted correctly but not joined
If not B2 then award B1 for
any 2 correct points stated (could be in a table) or plotted or may be seen in working e.g. 2 × 1 + 4 = 6 or
for a line with a positive gradient through (0, 4) or
for a line with gradient 2