Foundation June 2023 Paper 2 Q20
20
(a) Complete the table of values for \(\;y = x^2 - x - 4\)
(2)
| \(x\) | –3 | –2 | –1 | 0 | 1 | 2 | 3 |
| \(y\) | 2 | –4 |
(b) On the grid below, draw the graph of \(\;y = x^2 - x - 4\;\) for values of \(x\) from –3 to 3
| Scheme | Marks | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| B2 | ||||||||||||||||
| (2) |
Notes
B2: for all correct values, otherwise
B1 for 3 or 4 correct values
| Scheme | Marks |
|---|---|
| M1 | |
| correct curve | A1 |
| (2) | |
| (4 marks) |
Notes
M1: dep on B1 scored in (a)
for at least 5 points plotted correctly (ft their table)
A1: for a fully correct curve (all coordinates correct and correctly plotted and joined with a curve and curved between (0, ‒4) and (1, ‒4))