Four mathematical sketches are shown below, labeled M, N, O, and P.
M
N
O
P
Match each statement with its correct graph letter.
| Proportionality type | Graph letter |
|---|---|
| Direct proportion (y=kxy = kxy=kx) | |
| Inverse proportion (y=kx\displaystyle y = \frac{k}{x}y=xk) | |
| Direct square proportion (y=kx2y = kx^2y=kx2) | |
| Inverse square proportion (y=kx2\displaystyle y = \frac{k}{x^2}y=x2k) |
50 exam-style questions on AQA GCSE Maths Direct and Inverse Proportion. Each one has a worked solution and a mark scheme showing where the marks go.