If \(x\) is positive, \(y\) is negative ... types of currency. Linear graphs are commonly used when converting between different units of measurement. For example, swapping between temperatures ...

Mathematically similar to a linear relationship is the concept of a linear function ... a graph. It means that if one variable increases then the other variable increases. Conversely, a negative ...

Almost anything will work, but why not take the simple example ... of functions, but not nearly interesting enough for calculus purposes. While I do spend lots of time pushing the idea of linear ...