Question

What is the slope of a line that is perpendicular to a slope of 1?

Answer 1

If `m_1 = 1, " then " m_2 =-1`

Explanation:

A slope that is perpendicular to another slope is the negative reciprocal.

(Turn it upside down and change the sign)

If two lines are perpendicular then:

`m_1 xx m_2 = -1`

For `m_1 = 1 = 1/1, rarr m_2 = -1/1 = -1`