Foundation January 2023 Paper 2R Q19
19 On the grid, draw the graph of \(5x + 2y = 10\) for values of \(x\) from –2 to 4
(3)
| Scheme | Marks | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Answer: Correct line | B3 | ||||||||||||||||
| (3) | |||||||||||||||||
| (3 marks) |
Notes
B3: for a correct line between \(x = -2\) and \(x = 4\)
If not B3 then award B2 for a line segment through at least 3 of (–2, 10), (–1, 7.5), (0, 5), (1, 2.5), (2, 0), (3, –2.5), (4, –5)
or
all points plotted correctly
If not B2 then award B1 for at least 2 correct points plotted or stated (may be seen in a table) or for a line drawn with a negative gradient through (0, 5) or for a line with a gradient of –2.5