1MA0 Higher November 2013 Paper 2 Q17
17
(a) Complete the table of values for \(y = x^3 - 4x\)
(2)
| \(x\) | \(-3\) | \(-2\) | \(-1\) | 0 | 1 | 2 | 3 |
|---|---|---|---|---|---|---|---|
| \(y\) | 3 | 0 | 15 |
(b) On the grid, draw the graph of \(y = x^3 - 4x\) from \(x = -3\) to \(x = 3\)
| Answer | Mark | Notes |
|---|---|---|
| \(-15, 0, 3, 0,\) \(-3, 0, 15\) | 2 | B2 for all correct (B1 for any 2 or 3 correct) |
| Answer | Mark | Notes |
|---|---|---|
| Correct graph | 2 | M1 for at least 5 points plotted correctly (ft from table if at least B1 awarded in (a)) A1 for a fully correct curve |