What is the slope of any line perpendicular to the line passing through (-9,5) and (2,-43)?

2 Answers
Jul 8, 2016

color(blue)(11/48)

Explanation:

If a line has a slope of color(green)(m)
then any line perpendicular to it has a slope of color(green)(""(-1/m))

A line through (-9,5) and (2,-43) has a slope of
color(white)("XXX")m=(Deltay)/(Deltax)=(5-(-43))/(-9-2)=-48/11

So any line perpendicular to this has a slope of
color(white)("XXX")11/48

Jul 8, 2016

Reqd. Slope =11/48.

Explanation:

Let us name the line passing thro. two given pts. L.

Then, Slope of L = (5-(-43))/(-9-2)=48/-11.

Therefore, the slope of any line perp. to L is given by -1/(48/-11)=11/48