Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 11 - Rational Expressions and Functions - Chapter Test: 2

Answer

$y = \frac{32}{x}$ or $xy = 32$

Work Step by Step

Our equation for an inverse variation is $y = \frac{k}{x}$ or $xy = k$. We will use the second form of the equation to solve for k. From our ordered pair, $(-8, -4)$ we know that $x = -8$ and $y = -4$. $-8\times-4 = k$ $ 32 = k$ $k = 32$ Therefore, our equation for the inverse variation is $y = \frac{32}{x}$ or $xy = 32$
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