Find out how to create one in this Bitesize KS3 maths video. A quadratic function ... How to draw inverse proportion A simple, step-by-step guide showing you how to draw a graph of inverse proportion.

𝑥 is the input and 𝑓 is the function that we apply, which in this example is 3𝑥 – 1. An inverse function links the output value back to the input value, meaning it is the original ...