Higher November 2022 Paper 4 Q17
17 Find the equation of the line through (4, 5) that is perpendicular to \(y = 2x - 3\). [3]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \(y = -\frac{1}{2}x + 7\) final answer oe | 3 | M1 for \(m_2 = -\frac{1}{2}\) M1 for 5 = their \(m_2\) × 4 + \(c\) or \(y - 5 = their\ m_2\,(x - 4)\) | implied by (4,5) satisfying their answer but not when their \(m_2\) = 2 |