With the Sundance Film Festival right around the corner, I thought it would be appropriate to re-publish a little post I wrote some time ago in the waning days of the 2008 fest. Originally published ...

In this graph, 𝑥 and 𝑦 are directly proportional. This means that when 𝑥 doubles, 𝑦 also doubles, and when 𝑥 triples, so does 𝑦. In fact, for all coordinates on this line, you could multiply or ...