2EM 1.2 Worked Example 6 (Application of Inverse Proportion)
\(x\) is indirectly proportional to the cube of \(y\). It is known that \(x=9\)for a particular value of \(y\). When the value of \(y\) is increased by \(100\)%, find
the value of \(x\).
the percentage decrease in the value of \(x\).