## Algebra 2 (1st Edition)

Published by McDougal Littell

# Chapter 9 Quadratic Relations and Conic Sections - 9.4 Graph and Write Equations of Ellipses - 9.4 Exercises - Mixed Review - Page 639: 63

#### Answer

$$-\frac{1}{60}$$

#### Work Step by Step

Finding the inverse constant, we find: $$k=xy=(.3)(\frac{2}{9})=\frac{1}{15}$$ When $x=-4$: $$y=\frac{\frac{1}{15}}{-4}=-\frac{1}{60}$$

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