If the endpoints of ab have the coordinates a(9, 8) and b(-1, -2), what is the midpoint of ab? a. 5,3 b. 4,5 c. 5,5 d. 4,3

D. (4,3)

Explanation:
The endpoints of the line are given as (9,8) and (-1,-2)
1- Computing the x-coordinate of the midpoint:
Xmidpoint = (x1+x2) / 2 = (9+-1)/2 = 8/2 = 4
2- Computing the y-coordinate of the midpoint:
Ymidpoint = (y1+y2) / 2 = (8+-2) / 2 = 6/2 = 3

Based on the above, the midpoint is (4,3)

Hope this helps :)