Question

A,B,C are 3 points on a line the coordinate of A & B are -4 & 8 . If C is the midpoint of AB . what is the coordinate of C ?

Answer 1

use the formula xC=(xA+xB)/2

Answer 2

x?

Answer 3

that the abscissa,or coordinate as you wrote

Answer 4

how?

Answer 5

mid point is half the distance; what is the distance from -4 to 8 ??

add that to the low end, or subtract it from the high end to determine the middle amount

Answer 6

l + (h-l)/2

(2l + h-l)/2

(l + h)/2

Answer 7

h - (h-l)/2

(2h - h + l)/2

(h + l)/2

same results