June 2024 Paper 2 Q1
1 Calculate the exact distance between the points \((2, -1)\) and \((6, 1)\). Give your answer in the form \(a\sqrt{b}\), where \(a\) and \(b\) are prime numbers. [2]
| Scheme | Marks | AO |
|---|---|---|
| \((6-2)^2 + (1 - -1)^2\) soi | M1 | 1.1 |
| \(2\sqrt{5}\) cao | A1 | 1.1 |
| [2] |
Notes
M1: must be sum of two squares;
may be implied by correct answer or by \((\pm 4)^2 + (\pm 2)^2\)
A1: mark the final answer; B2 for correct answer unsupported