### Home > AC > Chapter 8 > Lesson 8.2.2 > Problem 8-57

8-57.

For the line :

What is the

-intercept?What is the slope of any line perpendicular to the given line?

The -intercept is where

*.*

Subtract

Divide by

The -intercept is

The slope of a line perpendicular to another line is the negative reciprocal of the other line's slope.

Example:

Line (a):