step-by-step explanation:
given that ab is divided into equal parts as
ac, cd, de, ef, fg, gh, hi, ib.
from this we find that f is the midpoint of ab.
so using mid point formula we find
f = (3,7)
similarly considering fb, we get
h = mid point of fb = ((6,6) and g, mid point of fh is
g = (9/2, 13/2)
i is mid point of hb
so i =(15/2,11/2)