Student Project Figures Figure 5 Figure 5. Scatter graph of the mean optical density (OD) values over time (minutes) of the treatment ("mixture"). Purple markers represent OD600 means. Black markers represent OD690 means. Error bars represent the standard deviations of those means. OD values one or more standard deviations from the mean were excluded from analysis as outliers. The trend lines were found as OD600= -1.00 x 10E-04 minutes + 0.0200 (R2= 0.833, dashed purple line) and OD690= -9.50 x 10E-05 minutes + 0.0191 (R2= 0.870 dashed black line).  Figure 4 Figure 5