Higher November 2020 Paper 1 Q22

(a) \(y\) is directly proportional to \(x^3\)

\(y = 17 \quad\) when \(\quad x = 4\)

Work out an equation connecting \(y\) and \(x\). [3 marks]

(b) \(m\) is inversely proportional to \(\sqrt{r}\)

The value of \(r\) is multiplied by 4

Circle what happens to the value of \(m\). [1 mark]

• \(\times\ 2\)
• \(\times\ 16\)
• \(\div\ 2\)
• \(\div\ 16\)