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