SOLUTION: Find the slope, if it exists, of the line containing the pair of pints (7,2)(9,-2)

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Question 461329: Find the slope, if it exists, of the line containing the pair of pints (7,2)(9,-2)
Answer by algebrahouse.com(1659)   (Show Source): You can put this solution on YOUR website!
y2 - y1
--------- = slope
x2 - x1


(7,2) , (9,-2)

-2 - 2
-------- = slope {substituted into slope formula}
9 - 7

-4
--- = slope {subtracted on top and bottom}
2

= -2 {divided}
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