Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 5 - Linear Functions - Chapter Review - 5-2 Direct Variation: 16

Answer

Direct Variation Equation - $y=2.5x$ $y=30$ when $x=12$

Work Step by Step

$y=kx$ Substitute $x$ with $3$ and $y$ with $7\frac{1}{2}$ $7\frac{1}{2}=3k$ $k=2.5$ $y=2.5x$ $y=2.5(12)$ $y=30$
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