# Chapter 3 - Introduction to Graphing - 3.7 Point-Slope Form and Equations of Lines - 3.7 Exercise Set - Page 218: 66

$y=-2$

#### Work Step by Step

The given equation, $x=1$, is a vertical line. The line perpendicular to this that passes through $( 4,-2 )$ is the horizontal line $y=-2$.

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