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.

Knowledge graphs have been widely used in various domains such as intelligent question answering, information retrieval, transportation, medicine, e-commerce, and others, and have achieved significant ...

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