Foundation November 2017 Paper 3 Q12
12
(a) Find the coordinates of the point where \(y - 2x = 1\) crosses the \(y\)-axis. [2]
(b) The diagram shows the graph of \(y = 3x + c\), where \(c\) is a constant.
Find the value of \(k\). [3]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| (0, 1) | 2 | B1 for (0, …\(g\)…) \(g \ne 1\) or M1 for \(y = 2x + 1\) or \(y - 2 \times 0 = 1\) | |
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 4 | 3 | B1 for \(c = -2\) or M1 for \(y = 3k - 2\) \(k \ne 0\) And M1 for \(10 = 3k - 2\) | B1 soi \(3x - 2\) or 3 x number – 2 Allow \(x\) for \(k\) |