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

8-57.

For the line :

  1. What is the -intercept?

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

The -intercept is where .

Subtract from both sides.

Divide by on both sides.


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):