Calculus: Early Transcendentals 8th Edition

Published by Cengage Learning
ISBN 10: 1285741552
ISBN 13: 978-1-28574-155-0

Chapter 14 - Review - Concept Check - Page 981: 1


a) See the explanation below. b) See the explanation below.

Work Step by Step

a) A function is considered to be written as $f(x,y)$ with two variables $x,y$ in a set of domain D of real numbers. b) The three methods for visualizing a function of two variables are given below: i) A function $f(x,y)$ can be visualized by graphing it. ii) A contour map is the best method for visualizing a function of two variables. It consists of level surfaces such as $f(x,y)=p$ (p=a constant term). These are horizontal traces of the graph of the function which shows the projection onto the $xy$ plane. iii) The third method is an arrow vector diagram.
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