Foundation November 2021 Paper 3 Q15
15
(a) Complete the table of values for \(\quad y = x^2 - 2\) [1 mark]
| \(x\) | −3 | −2 | −1 | 0 | 1 | 2 | 3 |
| \(y\) | 2 | −1 | −2 | −1 |
(b) Draw the graph of \(\quad y = x^2 - 2 \quad\) for values of \(x\) from \(-3\) to 3 [2 marks]
| Answer | Mark | Comments | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| B1 |
| Answer | Mark | Comments |
|---|---|---|
| Plots at least four points correctly | M1 | ft their points from part (a) \(\pm\,\dfrac{1}{2}\) small square |
| Correct graph drawn through the seven correct points | A1 | \(\pm\,\dfrac{1}{2}\) small square smooth quadratic curve |
Additional guidance
| Correct graph drawn without plotting the correct points | M1A1 |