Higher November 2019 Paper 2 Q10
10 Make \(k\) the subject of the formula \(y = \sqrt{2m - k}\) (2)
| Answer | Mark | Mark scheme |
|---|---|---|
| \(k = 2m - y^2\) | M1 | correct first step of showing an intention to square both sides with no algebraic ambiguity in any resulting statements, eg \(y^2 = 2m - k\) |
| A1 | for \(k = 2m - y^2\) |