Explain answer !! For part b only

Will give brainlst

x=-3 y=1

Step-by-step explanation:

Using the substitution method, since y=x+4, we plug x+4 into y of the top equation to find x. x+x+4=-2.⇒2x+4=-2⇒2x=-6⇒x=-3. Since x=-3 we plug that into y=x+4. y=x+4⇒y=-3+4⇒y=1

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)