Answer
It is a direct variation because it can be put into $y=kx$ form, with the constant of variation being $\frac{1}{2}$
Work Step by Step
$0.7x-1.4y=0$
$-1.4y=-0.7x$
$y=\frac{x}{2}$
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 5 - Linear Functions - Chapter Review - 5-2 Direct Variation - Page 350: 14
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