Higher June 2019 Paper 1 Q4
4
(a) Complete the table of values for \(y = x^2 - 3x - 1\) (2)
| \(x\) | \(-2\) | \(-1\) | 0 | 1 | 2 | 3 | 4 |
|---|---|---|---|---|---|---|---|
| \(y\) | \(-1\) | \(-3\) | 3 |
(b) On the grid, draw the graph of \(y = x^2 - 3x - 1\) for all values of \(x\) from \(-2\) to 4 (2)
| Scheme | Marks |
|---|---|
| 9, 3, (\(-1\)), \(-3\), (\(-3\)), \(-1\), (3) | B2 |
| (2) |
Notes
B2: If not B2 then award
B1 for at least 2 correct values
| Scheme | Marks |
|---|---|
| M1 | |
| correct graph | A1 |
| (2) | |
| (4 marks) |
Notes
M1: dep on B1 ft from (a) for at least 5 points plotted correctly
A1: for the correct graph (clear intention to go through all the points and which must be curved at the bottom)