## Thinking Mathematically (6th Edition)

Published by Pearson

# Chapter 7 - Algebra: Graphs, Functions, and Linear Systems - 7.2 Linear Functions and Their Graphs - Concept and Vocabulary Check - Page 460: 3

#### Answer

$m=\dfrac{y_2-y_1}{x_2-x_1}$

#### Work Step by Step

RECALL: The slope $m$ of a line can be found using 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. Thus, the missing expression in the given statement is: $m=\dfrac{y_2-y_1}{x_2-x_1}$

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