Calculus (3rd Edition)

Published by W. H. Freeman
ISBN 10: 1464125260
ISBN 13: 978-1-46412-526-3

Chapter 1 - Precalculus Review - 1.1 Real Numbers, Functions, and Graphs - Exercises - Page 9: 3


IxI $\leq$ 2

Work Step by Step

Plug in (-2,2) for (a,b) in the equations for c and r c = -2+2$\div$2 = 0 r = 2 - 0 = 2 Plug in the values for c and r into the inequality equation The inequality is Ix-0I$\leq$2 Simplify to IxI$\leq$2
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