how can you determine if two lines are perpendicular?

if their slope is negative reciprocal to each other, then they are perpendicular.


Dude what the hell is wrong with you?

one can determine if two lines are perpendicular if thier they share a common point and the product of thier slopes are -1

To determine if two lines are perpendicular, you can follow these steps:

1. Find the slopes of both lines. The slope of a line can be calculated by using the formula:

Slope = (change in y-coordinates)/(change in x-coordinates)

Let's denote the slopes of the two lines as m1 and m2.

2. Remember that perpendicular lines have slopes that are negative reciprocals of each other. This means that if m1 and m2 are slopes of two lines, then:

m1 * m2 = -1

3. If the product of the slopes of two lines is -1, then they are perpendicular. Otherwise, if the product is not -1, the lines are not perpendicular.

By following these steps, you can determine if two lines are perpendicular based on their slopes.