Question

Is this statement true "The slope of a line perpendicular to another line is the negative reciprocal of the other line's slope".

• A. Yes
• B. No

Answer 1

The correct option is A Yes

Let the slope of the line is $m_1$ and slope of the perpendicular line is $m_2$
Concept: If two line are perpendicular to each other, then product of the slope of both line is $-1.$
$m_1\times m_2=-1$
$m_1=\frac{-1}{m_2}$
Hence, the statement is true.