### Home > A2C > Chapter 11 > Lesson 11.3.4 > Problem 11-167

11-167.

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

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

11-167.

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

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