# Chapter 9 Quadratic Relations and Conic Sections - Cumulative Review - Page 678: 29

$$x=\frac{-75}{y}$$

#### Work Step by Step

Since this is inverse variation, we find that the constant of variation is: $$k=xy=(-15)(5)=-75$$ Thus, the equation is: $$x=\frac{-75}{y}$$

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