### Home > A2C > Chapter 11 > Lesson 11.3.1 > Problem 11-131

11-131.

Find the equation of the line that is perpendicular to

A perpendicular line has a slope that is the opposite reciprocal of the slope of the given line.

Using *y* = *mx* + *b*, substitute the *m*, *y*, and *x*. Now solve for *b*.

*y* = −2*x* + 34

The lines are shown to the right.