Answer
perpendicular
Work Step by Step
By using the slope formula, the slopes of the lines are:
$m_1=\frac{y_2-y_1}{x_2-x_1}=\frac{7-(-2)}{2-(-1)}=\frac{9}{3}=3.$
$m_2=\frac{y_2-y_1}{x_2-x_1}=\frac{-6-(-3)}{3-(-6)}=\frac{-3}{9}=\frac{-1}{3}.$
Since $m_1m_2=-1$, they are perpendicular.
