Question

.
A line containing the points (4,5) and (2,1) has a slope of
?

Answer 1

slope is measure by rise over run or (y2-y1)/(x2-x1)

(1-5)/(2-4)
-4/-2
slope = 2

Answer 2

slope = (y2-y1)/(x2-x1)
slope = (1-5)/(2-4)
slope = -4/-2
slope = 2