Question

The slope of a line is 1/3 . What is the slope of a line perpendicular to this line?

-3
-

3

Answer 1

perpendicular is the opposite, so -3

Answer 2

FIRST OPTION: -3

Explanation:

By definition, if two lines are perpendicular to each other, then their slopes are negative reciprocals.

In this case you can observe that that the slope of the line is
`(1)/(3)` and you know that the other line is perpendicular to this line. Therefore, their slopes are negative reciprocals.

This means that:

If
`slope_1=(1)/(3)` ,then
`slope_2=-3`

This matches with the first option.