From the graph, we can also see that the y-intercept is 6, therefore we can say that the equation of the straight line is \ (y = mx + 6\). Now we need to find the gradient.

Statistical inference for exponential-family models of random graphs with dependent edges is challenging. We stress the importance of additional structure and show that additional structure ...

Carl N. Morris, Natural Exponential Families with Quadratic Variance Functions, The Annals of Statistics, Vol. 10, No. 1 (Mar., 1982), pp. 65-80 ...