SOLUTION: Find the slope of the line that passes through (-1,2) and (1,-7)

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Question 933653: Find the slope of the line that passes through (-1,2) and (1,-7)
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
(-1,2) and
(1,-7) m =%28y%5B1%5D+-+y%5B2%5D%29%2F%28x%5B1%5D+-+x%5B2%5D+%29 = 9/-2 = -9/2
....slope m = = -9/2
***Using point-slope form, y+-+y%5B1%5D+=+highlight_green%28m%29%28x+-+x%5B1%5D%29P(-1,2)
y - 2 = (-9/2)(x +1)
y - 2 =(-9/2)x -9/2
y = (-9/2)x -9/2 + 4/2
y = (-9/2)x -5/2