# Cross Sections of Graphs of Functions of Two Variables

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The graph of a function of two variables can be better understood by looking at slices, or cross sections, of the graph parallel to the or planes. Slicing is equivalent to holding (or ) constant at and looking at the graph of the resulting single-variable function (or , respectively). This Demonstration helps students connect the slice on the 3D graph of with the 2D graph of or in its own right.

Contributed by: Joshua Sabloff and Stephen Wang (Haverford College) (March 2011)

Open content licensed under CC BY-NC-SA

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"Cross Sections of Graphs of Functions of Two Variables"

http://demonstrations.wolfram.com/CrossSectionsOfGraphsOfFunctionsOfTwoVariables/

Wolfram Demonstrations Project

Published: March 7 2011