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 ...

for example, sales improve or degrade between quarters. One way to assess this fluctuating data is to add a linear trend line to the Excel 2013 graph. This visual element considers all the data ...

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 ...

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 ...

Let's try making a graph ... it is to show that there is a relationship between the variables being plotted on the two axes. In this case, what do we expect? Should this be a linear function?

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 ...