I discussed whether zero needs to be included on all scales in a recent post, ending by saying, “Not including zero in the baseline is one way to exaggerate a trend for those who don’t read labels ...

Capture relationships between data sets by graphing linear equations in Microsoft Excel 2007. Linear equations allow you to predict values within your data set and view the overall trend. Use ...

Plot points with coordinates where \(x\) and \(y\) are equal. Three points are sufficient, but more can be plotted. Draw a line through the plotted points. If \(x\) is positive, \(y\) is negative. If ...