Mathematics

# 'The coordinates of the endpoints of CD line segment , in the standard (x,y) coordinate plane, are (−4,−2) and (14,2). What is the x-coordinate of the midpoint of CD line segment? A. 0 B. 2 C. 5 D. 9 E. 10'

$C(-4;-2);\ D(14;\ 2)\\\\the\ x-coordinate\ of\ the\ midpoint\ of\ CD:x=\frac{-4+14}{2}=\frac{12}{2}=6$