Higher June 2019 Paper 2R Q3
3
(a) Complete the table of values for \(y = 1 + 5x - x^2\) (2)
| \(x\) | −1 | 0 | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|---|---|
| \(y\) | 1 | 7 | 7 | 1 |
(b) On the grid, draw the graph of \(y = 1 + 5x - x^2\) for values of \(x\) from −1 to 6 (2)
| Scheme | Marks |
|---|---|
| −5, 5, 5, −5 | B2 |
| (2) |
Notes
B2: All 4 correct values
If not B2 then B1 for 2 or 3 correct values
| Scheme | Marks |
|---|---|
| M1 | |
| Fully correct curve | A1 |
| (2) | |
| (4 marks) |
Notes
M1: Plotting at least 6 points correctly from their table dep on B1 in part(a)
A1: Do not accept horizontal line at top of curve or straight line segments