Answer:
slope = m = -9/7
Explanation:
(1,17) (8,8)
(X1, Y1) (X2, Y2)
slope = (Y2-Y1)/(X2-X1)
then
slope = m = (8-17)/(8-1)
m = -9/7
Answer: -9/7 or -1 2/7
use slope formula
y2-y1/x2-x1
(x1,y1)(x2,y2)
substitute in and solve
8-17/8-1
-9/7
the slope is -9/7
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