Question

Find the slope of a line perpendicular to a line with points (3, -7) and (2, -4).

Answer 1

1/3.

Explanation:

The slope of the given line = (-4 - -7)/(2-3)

= 3 / -1

= -3.

The line perpendicular to this has slope - 1 / (-3)

= 1/3.