Suppose a group of data has been collected, such as tallies of choices made by voters. The information arising from that data needs to be presented to interested parties in a useful way. Data presentation, the organization of collected data into objects such as tables and graphs, requires attention to both the quantitative or statistical analysis of the data and the perspective that the organization of the data implies. While several different styles of data presentation exist, voting data is frequently presented in the form of a table of rows and columns containing two variables: a candidate and that candidate’s polling outcome. This sort of relationship in two variables is closely related to another form of data representation in a space called the coordinate plane in which the two variables are related together in an ordered pair called a data point. For election data, the ordered pair of variables might take the form of (candidate, polling outcome). The same data can be presented in tabular form in rows and columns or graphical form as data points in a plane. Before studying voting theory, it will be good to study these two forms of data presentation by first embarking on an in-depth exploration of graphs. We will also take an introductory look at equations by studying the equation of a line between two data points in the plane.