What is the slope of any line perpendicular to the line passing through (9,15) and (7,2)?
2 Answers
Apr 10, 2018
Explanation:
Let the slope of the line joining the 2 points be
We know,
So
Apr 10, 2018
Explanation:
"calculate the slope m using the "color(blue)"gradient formula"
•color(white)(x)m=(y_2-y_1)/(x_2-x_1)
"let "(x_1,y_1)=(9,15)" and "(x_2,y_2)=(7,2)
rArrm=(2-15)/(7-9)=(-13)/(-2)=13/2
"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
rArr"perpendicular slope "=-1/(13/2)=-2/13