Figure 5 above shows the interaction effect of voltage and time electrified. The graph was created using the points determined in Table 7. Table 7 was created by rearranging the numbers of the average results of seeds germinated. The graph implies that there is no interaction between the two factors. The slope of the line segment Time (+), representing the high level of time, is greater than the slope of line segment Time (-), representing the low level of time. Therefore, the slopes are not parallel, showing that there may be an interaction between the variables