How to Graph Using DRY MIX . DRY MIX is an acronym to help you remember how variables are plotted on a graph. It also serves as a reminder that there are two names for each variable. Scientists use both names. D = dependent variable R = responding variable Y = graph information on the vertical axis M = manipulated variable I = independent variable X = graph information on the horizontal axis Dependent Variable or the Responding Variable is the response to the change you make with the independent/manipulated variable. This variable is observed during as well as at the end of the experiment. You do not know the resulting response before the inquiry/experiment. It is what you measure. It goes on the Y axis. Examples: temperature, distance Independent Variable or Manipulated Variable. Some people nickname it the I-do variable. Often it is a unit of time (minutes, hours, days). You know this before you begin your inquiry/experiment. It goes on the x axis. Controlled Variables are not graphed, but these could affect the results of the experiment. Have as many controlled variables as possible to add validity. Extraneous Variables are not graphed. They are unanticipated, unwanted events, which may cause incorrect experimental results and wrong conclusions.