Calculus 3 Lecture 13.1: Intro to Multivariable Functions (Domain, Sketching, Level Curves)

Calculus 3 Lecture 13.1: Intro to Multivariable Functions (Domain, Sketching, Level Curves): Working with Multivariable Functions with an emphasis on finding Domain, Sketching Domain, Sketching Functions, and finding both Level Curves and Contour Plots.