Foundation June 2018 Paper 3 Q28
28 Make \(g\) the subject of the formula \(T = \sqrt{\dfrac{g + 6}{2}}\) (3)
| Answer | Mark | Mark scheme |
|---|---|---|
| \(g = 2T^2 - 6\) | M1 | for \(T^2 = \dfrac{g + 6}{2}\) or \(\sqrt{2} \times T = \sqrt{g + 6}\) |
| M1 | (dep) for \(T^2 \times 2 = g + 6\) or \(\left(\sqrt{2} \times T\right)^2 = g + 6\) oe | |
| A1 | for \(g = 2T^2 - 6\) oe |
Additional guidance
Can only award this mark if the first M mark has been awarded.