SOLUTION: What is the slope of the line passing through (3,5) and (7,21)?

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Question 250991: What is the slope of the line passing through (3,5) and (7,21)?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
m=(y1-y2)/(x1-x2)
m=(5-21)/(3-7)
NB
You could also use
(21-5)/(7-3)