Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 2 - Review - Concept Check - Page 230: 1

Answer

a - A function is a special relationship where each input has a single output. b - The range of a function is the complete set of all possible resulting values of the dependent variable (y, usually), after we have substituted the domain. In plain English, the definition means: The range is the resulting y-values we get after substituting all the possible x-values. The domain is the set of values we plug in to get our range values. c - The graph of a function is all of the points present on a function placed on a coordinate plane. d - Independent variable is the variable that we change and dependent variable changes as a result.

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