Question

find the equation of the line having the given slope and containing the given the pair of point
(-7,-2) and (-4,-3)

Answer 1

1) find the slope:
m=(y1-y)/(x1-x)

Answer 2

1) m=(-2-(-3))/(-7-(-4))=1/(-3)=-1/3

Answer 3

now use any given point to write your equation:
y-(-2)=-1/3 *(x-(-7))
y+2=-x/3 -7/3
y=-x/3 -7/3-2
y=-1/3 x -13/3