Answer
It is a direct variation because it can be put into $y=kx$ form
Work Step by Step
$-4+7x=4=3y$
$7x=3y$
$y=\frac{7x}{3}$
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: 13
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