Which is the best interpretation of the two flat portions of the graph
1. The two flat portions of the graph indicate a period of stability or equilibrium. This suggests that there is little to no change or significant increase/decrease in the variable being measured during these periods.
2. The two flat portions of the graph show a plateau or a leveling off of the variable being measured. This suggests that there is a saturation point or maximum value reached, and further changes or increases in the variable are limited or constrained.