Answer
(a) All the real numbers greater than or equal to 4.
(b) See the graph.
(c) Unbounded.
Work Step by Step
(a) All the real numbers greater than or equal to 4.
(c) The interval is unbounded because it does not have a finite length.
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Prerequisites - P.1 - Review of Real Numbers and Their Properties - Exercises - Page 12: 21
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