How do you find the slope perpendicular to (-7,2) and (5,-12)?
1 Answer
Mar 2, 2018
Explanation:
#"given a line with slope m then the slope of a line"#
#"perpendicular to it is "#
#•color(white)(x)m_(color(red)"perpendicular")=-1/m#
#"to calculate m use the "color(blue)"gradient formula"#
#•color(white)(x)m=(y_2-y_1)/(x_2-x_1)#
#"let "(x_1,y_1)=(-7,2)" and "(x_2,y_2)=(5,-12)#
#rArrm=(-12-2)/(5-(-7))=(-14)/(12)=-7/6#
#rArrm_(color(red)"perpendicular")=-1/(-7/6)=6/7#
