Foundation June 2019 Paper 2R Q19
19
(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
| 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