Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 3 - 3.5 - Mathematical Modeling and Variation - 3.5 Exercises - Page 297: 75


True. If we multiply $z$ by a factor $k$, then $x$ will also be multiplied by the same factor $k$ and, consequently, y will also be multiplied by $k$.

Work Step by Step

$a,b,c$ are constants. $y=ax$ $x=bz$. Replace this equation in the above equation. $y=a(bz)=(ab)z=cz$ $y=cz$, where $c=ab$
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