2. Use Excel to plot R vs p (from Table 2a), obtain the best fit line, and the equation of the best fit line. Record the slope of the best fit line (include unit) underneath the plot. What does the slope represent in terms of the fixed parameters L and A? Calculate the theoretical value of the slope (include unit) and record the percent discrepancy. [Use the defining equation above to show that the theoretical value of the slope for this case is L/A, where L and A are reported in table 2a.]