SOLUTION: find the slope of the line that goes through the given points (4,-9) and (4,-10)

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Question 442518: find the slope of the line that goes through the given points
(4,-9) and (4,-10)
Answer by rwm(914) About Me  (Show Source):
You can put this solution on YOUR website!
-10--9=-1
4-4=0
-1/0=slope undefined
it is a vertical line