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Linear functions

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1 Answer

slope of line:        ( y2 - y1)/(x2 - x1)
 
(2, 7) and (6, -3)
 
(-3 - 7)/(6 - 2) ---> -10/4--->-5/2
 
so slope is -5/2
 
Δx = 2, Δy = -5
 
another point is (2 + Δx, 7 + Δy) or (2 + 2, 7 - 5) ---> (4, 2)

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