Question

2+2

Answer 1

the bisector goes through the middle point

the midpoint has an (x,y). Its x is the average of the 2 end points x's
(add the x's and divide by 2)
same for the y midpoint: find the average of the end point y's

Answer 2

for x, add 6 + -4

then divide by 2

Answer 3

only 1 of your choices has x=1

but to be sure, check the y

Answer 4

find the midpoint's y: 8 + -2 = 6
divide by 2
3
so (1,3)
is the midpoint

Answer 5

if you think about it, the middle should be the average of the end's

Answer 6

re-read what I posted.

Answer 7

yes

Answer 8

how would you get (2,6) ? (just curious)