Higher November 2020 Paper 1 Q3
3 On the grid, draw the graph of \(y = 7 - 4x\) for values of \(x\) from \(-2\) to 3
(3)
| Scheme | Marks | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Answer: Correct line between \(x = -2\) and \(x = 3\) | B3 | ||||||||||||||
| (3) | |||||||||||||||
| (3 marks) |
Notes
B3: for a correct line between \(x = -2\) and \(x = 3\)
(B2 for a correct straight line segment through at least 3 of (−2, 15) (−1, 11) (0, 7) (1, 3) (2, −1) (3, −5)
or
for all of (−2, 15) (−1, 11) (0, 7) (1, 3) (2, −1) (3, −5) plotted but not joined)
(B1 for at least 2 correct points stated (may be in a table) or plotted or for a line drawn with a negative gradient through (0, 7) or for a line with a gradient of −4)