Find the slope of the line passing through the points (-3, -2) and (9,-2).
slope:

Step-by-step explanation:

(-2+2)/(9+3)= 0/12= 0

y + 2 = 0(x + 3)

y + 2 = 0

y = -2

answer: the dogs need to shift their focus to human scent.

its because the dogs being trained are for search and rescue thus they need to be able to track humans and their specific scent