Could Two Lines with Negative Slope Be Perpendicular?

If the slopes of two lines are negative reciprocals, the lines are perpendicular.

Is the slope of a perpendicular line the negative reciprocal?

As mentioned above, the slopes of perpendicular lines are negative reciprocals of each other. So, if we know the slope of a line perpendicular to our line, we have it made.

When two lines are perpendicular The slope is?

The slopes of two perpendicular lines are negative reciprocals of each other. This means that if a line is perpendicular to a line that has slope m, then the slope of the line is -1 / m.