# Chapter 1-3 - Cumulative Review - Page 228: 30

slope = $-\dfrac{1}{3}$

#### Work Step by Step

RECALL: The slope $m$ of a line is given by the formula $m=\dfrac{y_2-y_1}{x_2-x_1}$ where $(x_1, y_1)$ and $(x_2, y_2)$ are points on the line. Use the formula above to obtain: $m=\dfrac{-1-1}{2-(-4)}=\dfrac{-2}{2+4}=\dfrac{-2}{6}=-\dfrac{1}{3}$

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