Question #ef8ed
1 Answer
Mar 1, 2017
Explanation:
For
#color(blue)"2 perpendicular lines"#
#"with slopes "m_1" and "m_2#
#"then " color(red)(bar(ul(|color(white)(2/2)color(black)(m_1xxm_2=-1)color(white)(2/2)|)))#
#rArr-9xxm_2=-1#
#rArrm_2=(-1)/(-9)=1/9larrcolor(red)" slope of other line"#
