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

8-57.

For the line :

What is the

-intercept?The

-intercept is where.Subtract

from both sides. Divide by

on both sides. The

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

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

Example:

Line (a):The line perpendicular to line (a) has the slope