The equation of line AB is (y−3) = 5 (x − 4). What is the slope of a line perpendicular to line AB?
1 Answer
Apr 30, 2017
Explanation:
#y-3=5(x-4)" is in "color(blue)"point-slope form"#
#"that is " y-y_1=m(x-x_1)#
#"where m represents the slope"#
#rArr"slope " =m=5#
#"the slope of a perpendicular line is the"#
#color(blue)"negative inverse of m"#
#rArrm_("perpendicular")=-1/5#
