Writing equation 2 from the lab manual in the form of an equation for a straight line (y= mx + b), what is the correct absolute error expression for the spring constant k in terms of the slope of the best-fit line (slopes) from the period (T) vs square root of oscillating mass (ml/2) graph? 5k = (872)/(6slopebest)2 O ok = (4728slopebest)/(slopebest)3 6k = (8726slopebest)/(slopebest) 6k = 6slopebest