Question 925980
Given points:
          (x1,y1)= (10,2)
          (x2,y2)= ( 4,8)
slope (m)= {{{ (y2-y1)/(x2-x1)}}}
          ={{{(8-2)/(4-10)}}}
         ={{{ 6/-6}}}
         ={{{-1}}}
Result : slope (m)= -1