4MA0 Higher January 2018 Paper 3 Q7
7 On the grid, draw the graph of \(y = 5 - 3x\) for values of \(x\) from −2 to 3
(3)
| Scheme | Marks |
|---|---|
| (−2, 11)(−1, 8)(0, 5)(1, 2) (2, −1)(3, −4) Answer: Correct line between \(x = -2\) and \(x = 3\) | B3 |
| (3) |
Notes
B3: for a correct line between \(x = -2\) and \(x = 3\)
If not B3 then award B2 for
a correct line through at least 3 of
(−2, 11) (−1, 8) (0, 5) (1, 2) (2, −1) (3, −4)
OR for all of
(−2, 11) (−1, 8) (0, 5) (1, 2) (2, −1) (3, −4) plotted, not joined
If not B2 then award B1 for
for at least 2 correct points stated or calculated (may be in a table) OR
for a line with a gradient of −3 OR
for a line drawn with a negative gradient through (0, 5)
NB: No mark should be awarded for a line through (0, 5) and (3, 0)