![CPM Homework Banner](/dist/7d633b3a30200de4995665c02bdda1b8.png)
Home > CALC > Chapter 2 > Lesson 2.3.3 > Problem 2-129
2-129.
What is the relationship between the slopes of perpendicular lines? If you know the slope of one of the lines, how can you find the slope of a line perpendicular to it?
Choose a number to represent the slope of line
Divide
Simplify.
That is the slope of line
How do the slopes compare?
The slopes of perpendicular lines are negative reciprocals.