Answer
Graph is B
Contour map is VI
Work Step by Step
Graph is B
When $x=0$ and $y=0$, the value of the graph is 1. When $|x|=1$ and or $|y|=1$, the function value is 0.
Contour map is VI
The graph is symmetric for all quadrants.
Calculus: Early Transcendentals 9th Edition
by Stewart, James
Published by
Cengage Learning
ISBN 10:
1337613924
ISBN 13:
978-1-33761-392-7
Chapter 14 - Section 14.1 - Functions of Several Variables - 14.1 Exercise - Page 950: 65
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