Question

what is a proportional relationship?
GPT 3.5
A proportional relationship is a relationship between two quantities in which they increase or decrease at the same rate. In other words, as one quantity changes, the other quantity also changes in a predictable way. This can be represented by a straight line on a graph that passes through the origin (0,0). Mathematically, two quantities are said to be in a proportional relationship if they can be written in the form y = kx, where k is a constant called the constant of proportionality.