Answer
See below.
Work Step by Step
If the variables vary directly, then $y=ax$ for some constant $a$. Plugging in the given values, here $-7=a\cdot35\\a=-0.2$.
Thus if $x=12$, then $y=12\cdot-0.2=-2.4$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 2 Linear Equations and Functions - 2.5 Model Direct Variation - 2.5 Exercises - Skill Practice - Page 109: 13
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