Question

Ifr is the slope of a line, and m is the slope of line perpendicular to that line, what is the relationship between r and m?

Answer 1

Explanation:

If slope r and slope m are perpendicular , their product must give negative one.

That is r ×m = -1

r = -1 /m

m = -1 /r

Answer 2

If "r" is the slope of a line, then the slope of any line perpendicular to that line will be the negative reciprocal of "r".

In other words, if "m" is the slope of a line perpendicular to the line with slope "r", then:

m = -1/r

This relationship holds true for any pair of perpendicular lines.