The graph presents the relationship between the ratio h divided by b on the x axis, ranging from 0.25 to 1, and the variable m on the y axis, ranging from 0.001 to 0.007. The curve shows a steady upward trend, indicating that as h divided by b increases, m increases. A segment of the slope is highlighted with a marker k, illustrating the gradient of the line in that interval.
Plot of the slope coefficient of the interpolated line vs h/b ratio