The table shows pairs of values for x x\,x and yyy
xxx
6
10
yyy
72
120
i.
Tick the correct statement below.
y∝xy \propto xy∝x .....
y∝x2y \propto x^2y∝x2 .....
y∝x3y \propto x^3y∝x3 .....
[2]
ii.
Write a formula for y y\,y in terms of xxx
[2]
Markscheme
Direct and Inverse Proportion Questions
43 exam-style questions on Edexcel GCSE Maths Direct and Inverse Proportion. Each one has a worked solution and a mark scheme showing where the marks go.