Answer
Always
Work Step by Step
Let's simplify the equation for direct variation:
$ y=kx \\\\ y/x=k$
Because the equation for direct variation simplifies to k=y/x, we know that k will always equal y/x.
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 5 - Linear Functions - 5-2 Direct Variation - Lesson Check - Page 304: 7
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