The equation y = x is linear because adding together inputs yields the sum of their respective outputs: 1 = 1, 2 = 2, and 1 + 2 = 1 + 2. But that’s not true of y = x 2: if x is 1, y is 1; if x ...

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.

Judit N. Moschkovich, Moving up and Getting Steeper: Negotiating Shared Descriptions of Linear Graphs, The Journal of the Learning Sciences, Vol. 5, No. 3, Collaborative Learning: Making Scientific ...

This paper is mainly concerned with the realizability of a set of n integers as the degrees of vertices of an n-vertex linear graph. Other related problems, such as when a set of integers is ...