Higher November 2017 Paper 1 Q16
16 \(y\) is directly proportional to \(\sqrt[3]{x}\)
\(y = 1\dfrac{1}{6}\) when \(x = 8\)
Find the value of \(y\) when \(x = 64\) (3)
| Answer | Mark | Notes |
|---|---|---|
| \(\dfrac{7}{3}\) | M1 | for \(y = k\sqrt[3]{x}\) oe or \(\dfrac{7}{6} = \sqrt[3]{8}\,k\) oe |
| M1 | for \(k = \dfrac{7}{6 \times \sqrt[3]{8}}\) oe | |
| A1 | for \(\dfrac{7}{3}\) oe |