Mathematically similar to a linear relationship is the concept of a linear function ... a negative linear relationship would show a downward line on a graph. If one variable increases then ...

Linear graphs are commonly used when converting between different units of measurement. For example, swapping between temperatures in degrees Celsius (°C) and degrees Fahrenheit (°F), exchanging ...

The next example just describes rates of change. Suppose we had one widget in 1999 and doubled the number each year. The following charts show the number of widgets on a linear and logarithmic ...