Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 13 - Section 13.4 - Nonlinear Inequalities and Systems of Inequalities - Exercise Set - Page 953: 3

Answer

Graph Shown:

Work Step by Step

The equation is that of a circle because the squared coefficients are equal. The radius is found by taking the square root of the number on the right hand side. That equals 4. Thus we graph the circle and the OUTSIDE must be shaded because $x^2+y^2$ must by more than 16.
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