Relation between stellar mass and the slopes for the radial fits of 12+log(O/H) (left column) and log(N/O) (right column). Panels a) and b) represent the slopes of the inner radial fits, panels c) and d) show the slopes of the middle radial fits, and panels e) and f) present the slopes of the outer radial fits. For all plots, blue dots represent galaxies with no breaks, green dots are for those with one break, and red dots represent galaxies with two breaks. Solid black lines represent the flattened profile (∇ = 0).