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 ...

An example of a scatter graph. This graph shows the relationship between a recorded temperature and the number of drinks sold. To produce a scatter diagram, data is required. The data often comes in ...

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 ...

Pie charts show percentages as a circle, divided into segments. A pie chart could be used to show how students travel to school. Each piece of data is shown as a proportion of 360, because there are ...

Adobe Illustrator's Graph tool opens a miniature spreadsheet-like window into which you can enter rows and columns of data to produce column, bar, line, area, scatter, pie and radar graphs. Its line ...