Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 3 - Polynomial and Rational Functions - 3.6 Variation - 3.6 Exercises: 1

Answer

increases; decreases

Work Step by Step

When $y$ varies directly as $x$, then $y=kx$ where $k$ is the constant of variation. Note that if $k\gt 0$, when the value of $x$ increases, the value of $y$ also increases. When the value of $x$ decreases, the value of $y$ also increases. Thus, the missing expressions in the given statement (in order) are: increases; decreases
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