Functions of Two Variables Functions of two variables can be visualized in many ways: heat maps in 2D, contour curves in 2D, wireframes in 3D, surfaces in 3D. We begin by defining a function of two ...

How to Make a Graph in Excel With Word and Number Variables. Microsoft Excel can perform numerous statistical functions, as well as create charts from statistical data. Statistical data includes ...

In this article, I describe generalization activity as an opportunity to learn about seventh graders' understanding of functions. A group of students who had studied functions modeled a multivariable ...