SOLUTION: Find the value of r so the line that passes through each pair of points has the given slope. (6,2),(9,r),m=-1

Algebra ->  Linear-equations -> SOLUTION: Find the value of r so the line that passes through each pair of points has the given slope. (6,2),(9,r),m=-1      Log On


   



Question 843249: Find the value of r so the line that passes through each pair of points has the given slope.
(6,2),(9,r),m=-1

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 
Hi,
(6,2),
(9,r) m = %282-r%29%2F%286-9%29+=+%282-r%29%2F-3+=+-1 (2-r) = 3, r = -1