SOLUTION: Find the value of r in (4,r), (r,2) so that the slope of the line containing them is -5/8

Algebra ->  Graphs -> SOLUTION: Find the value of r in (4,r), (r,2) so that the slope of the line containing them is -5/8      Log On


   

Question 391630: Find the value of r in (4,r), (r,2) so that the slope of the line containing them is -5/8
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
Y2-Y1 / X2-X1 = m
2-r / r-4
=2-7/12-4
=-5/8
(4,7)(12,2)
.
Ed