Answer:
The answer is 4
Step-by-step explanation:
The midpoint M of two endpoints of a line segment can be found by using the formula
[tex]M = ( \frac{x1 + x2}{2} , \: \frac{y1 + y2}{2} )[/tex]
where
(x1 , y1) and (x2 , y2) are the points
From the question the points are
A( 11 , - 1 ) and B ( - 3 , 29)
The midpoint is
[tex]M = ( \frac{11 - 3}{2} \: , \: \frac{ - 1 + 29}{2} ) \\ = ( \frac{8}{2} \: , \: \frac{28}{2} ) \\ = (4 \: , \: 14)[/tex]
The x coordinate of the midpoint is 4
Hope this helps you
