Coordinates will be 1/3 of the way between (-5,-7) and (1,-1)
Compute x coordinate of point:
distance between x coordinates = 1 - (-5) = 6
1/3 of that distance = 6/3 = 2
x coordinate = -5 + 2 = -3
Compute y coordinate of point:
distance between y coordinates = -1 - (-7) = 6
1/3 of that distance = 6/3 = 2
y coordinate = -7 + 2 = -5
coordinates of point (-3,-5)