Foundation November 2023 Paper 3 Q22
22 Part of the graph of \(y = 2x + 1\) is drawn on this grid.
(a) Write down the \(y\)-intercept. [1]
(b) The line continues to the right.
Will the line pass above, below or through the point (40, 80)?
Show how you decide. [2]
(c) Write down the equation of a line that is parallel to \(y = 2x + 1\). [1]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 1 | 1 | Accept (0, 1) and \(y = 1\) and +1 | |
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \(2 \times 40 + 1\) soi 81 or \((80 - 1) \div 2\) soi 39.5 oe | M1 | e.g. by (40, 81) | |
| Above | A1 | ||
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \(y = 2x + k\), \(k \ne 1\) | 1 | ||