### Home > AC > Chapter 12 > Lesson 12.4.4 > Problem 12-108

12-108.

Find the equation of the line perpendicular to 3*x − y* = 4 that goes through the point (−12, 4). Homework Help ✎

Solve the equation for *y*.

The slope of a perpendicular line is the opposite reciprocal of the original line.

Use the slope of the line and the point to solve for b.