Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 11 - Rational Expressions and Functions - 11-6 Inverse Variation - Practice and Problem-Solving Exercises - Page 704: 44


The missing value is: $0.9$ An equation is $y = 70x$.

Work Step by Step

The values of y seem to vary directly with the values of x. Ratio: $\frac{28}{0.4}=70$ $\frac{84}{1.2}=70$ The ratio $\frac{y}{x}$ is the same for all data pairs. So this is inverse variation, and $k =70$. The missing value is: $0.9$ since $\frac{63}{0.9}=70$ An equation is $y = 70x$.
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