Whoever can answer this correctly gets Brainliest + 20 Points. Please tell/explain how you got your answer so I can be on the same page.

The answer is -2

Step-by-step explanation:

m=y²-y¹/x²-x¹

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

m=8/-4

m=-2

1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0

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)