SOLUTION: FInd the slope if it exists, of the line containing a pair of points (9,3) and (10,-9)

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Question 235672: FInd the slope if it exists, of the line containing a pair of points
(9,3) and (10,-9)
Answer by checkley77(7072) About Me  (Show Source):
You can put this solution on YOUR website!
(9,3) and (10,-9)
SLOPE=(Y2-Y1)/(X2-X1)=(-9-3)/(10-9)=-12/1=-12 ANS.