SOLUTION: find the value of r so that the line through (2,-3) and (-4,r) has a slope of -1/2

Algebra ->  Graphs -> SOLUTION: find the value of r so that the line through (2,-3) and (-4,r) has a slope of -1/2      Log On


   

Question 1064620: find the value of r so that the line through (2,-3) and (-4,r) has a slope of -1/2
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
-1%2F2=%28r-%28-3%29%29%2F%28-4-2%29
-1%2F2=%28r%2B3%29%2F%28-6%29
r%2B3=3
Solve for r.