1MA0 Higher November 2012 Paper 1 Q24
24 Make \(t\) the subject of the formula
\[p = \frac{3 - 2t}{4 + t}\](4)
| Answer | Mark | Notes |
|---|---|---|
| \(t = \dfrac{3 - 4p}{p + 2}\) | 4 | M1 for intention to multiply both sides by \(4 + t\) eg \(p \times 4 + t = 3 - 2t\) M1 for intention to correctly move their \(t\) terms to one side, and correctly move their other terms to the other side eg \(p \times 4 + t - 4p + 2t = 3 - 2t + 2t - 4p\) M1 for intention to factorise eg \(t(p \pm 2)\) A1 for \(t = \dfrac{3 - 4p}{p + 2}\) oe |