# Chapter 6 Rational Exponents and Radical Functions - 6.3 Perform Function Operations and Composition - 6.3 Exercises - Mixed Review - Page 434: 50

$$y=-\frac{1}{3}x+3$$

#### Work Step by Step

Isolating y on one side of the equation, we find: $$x-9=-3y \\ y=-\frac{1}{3}x+3$$

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