Answer
$xy=-20$, $y=-20/3$
Work Step by Step
We have to plug in our values to the formula to $xy=k$
That yields,
$5*-4=-20$ or the equation is $xy=-20$
Plugging in x=3,
$3y=-20$ or $y=-20/3$
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 8 Rational Functions - 8.1 Model Inverse and Joint Variation - 8.1 Exercises - Skill Practice - Page 555: 12
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