Answer
reduced to half.
Work Step by Step
Step 1. As $y$ varies directly as $x$, we have $y=kx$ where $k$ is a constant.
Step 2. If $x'=\frac{x}{2}$, we have $y'=k\frac{x}{2}=\frac{1}{2}y$
Step 3. Thus, $y$ will be reduced to half.
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
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 - Page 391: 54
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