Question 74644
Find the slope of any line perpendicular to the line through points (6, 3) and (7, 7).
The slope between these two points can be found using the slope formula:  {{{highlight(m=(y[2]-y[1])/(x[2]-x[1]))}}}
m=slope (x1,y1) and (x2,y2) are the given points.
(x1,y1)=(6,3) and (x2,y2)=(7,7)
{{{m=(7-3)/(7-6)}}}
{{{m=4/1}}}  let's stop here rather than saying m=4
A slope of any line perpendicular to this line will be the the negative reciprocal of this slope.  (That means it will have the opposite sign and be upside down.)
{{{highlight(m=-1/4)}}}
Happy Calculating!!!!