Revise how to plot a linear equation graph. Learn how to read x and y coordinates from a graph in this BBC Bitesize maths KS3 guide.

Discover how linear regression works, from simple to multiple linear regression, with step-by-step examples, graphs and real-world applications.

Frank Harary, The Number of Linear, Directed, Rooted, and Connected Graphs, Transactions of the American Mathematical Society, Vol. 78, No. 2 (Mar., 1955), pp. 445-463 ...

Various special linear structures connected with covariance matrices are reviewed and graphical methods for their representation introduced, involving in particular two different kinds of edge between ...