he spectroscopic data in the table is generated with five solutions of known concentration. concentration (m) absorbance 0.01550.0155 0.11970.1197 0.03100.0310 0.15200.1520 0.06200.0620 0.50230.5023 0.1240.124 0.94350.9435 0.2480.248 1.8331.833 use a spreadsheet program, such as microsoft excel, to graph the data points and determine the equation of the best-fit line. what is the slope of the linear regression line formed by these points?