Excel allows you to add charts to enable others to visualize the data you're presenting. Because there are a variety of charts available, such as line and bar, determine the best chart style to suit ...

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 ...

Here is my dilemma. I am trying to help a friend add a trendline to an existing graph and control the length of the trendline itself. The graph tracks scores over a date range. The problem is that ...