SOLUTION: What is the slope of the line through (2, -8) and (4, 1)?

Algebra ->  Equations -> SOLUTION: What is the slope of the line through (2, -8) and (4, 1)?      Log On


   

Question 21422: What is the slope of the line through (2, -8) and (4, 1)?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
The slope equation is: (change in y) / (change in x) = slope.
Think of the two points as (x1, y1) and (x2, y2), so
x1 = 2
y1 = -8
x2 = 4
y2 = 1
change in y = y2 - y1
change in x = x2 - x1
%28+1+-+%28-8%29+%29+%2F+%28+4+-+2+%29+=+m+
+9+%2F+2+=+m+