>> Independent variables on the x-axis and dependent variables on the y. Correct. The independent variable being the number of items and the dependent variable

>> Independent variables on the x-axis and dependent variables on the y. Correct. The independent variable being the number of items and the dependent variable being the time it takes to run said number of items. >> Time should be on the x-axis. Time should be on the y-axis. It's the time it takes to execute, given a set of items.