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Click to download a workbook and open in Excel; make sure to enable macros for full functionality. The workbooks contain screencasts that explain what to do and include tasks that can be assigned.

If you understand the definition of a mathematical function, a good way to judge it is that any line drawn parallel to the y-axis intersects with the values in the function’s curve only once. The same ...

Add-ins are special files that provide additional functionality. After downloading an add-in file, the Add-ins Manager must be used to install it. Add-ins files have extension .xla or .xlam (for Excel ...

I have three values. On the X axis I want the date and time, and on the Y axis I want my reading. My data set looks like this: Code: Date Time Reading 11/30/2011 0934 212 11/30/2011 1252 272 ...

Trend lines are a type of regression analysis, which is a way to study the relationships between variables. In the context of small business, trend lines are often used to show sales trends and can be ...

Microsoft Excel doesn't always provide everything you need when it generates graphs. For example, by default, your line graph doesn't included a title. However, this doesn't mean you have to go ...