SOLUTION: (-2,r),(6,7),m=1/2

Question 238591: (-2,r),(6,7),m=1/2
Answer by user_dude2008(1862) (Show Source): You can put this solution on YOUR website!
(7-r)/(6--2)=1/2

(7-r)/(8)=1/2

2(7-r)=8

14-2r=8

-2r=-6

r=3 <--------------- Answer
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