in the middle
Midpoint
Halfway line
Line of reflection.
Its midpoint.
0.75 ---------------the halfway number
A line segment cannot have more than one midpoints because the midpoint is the halfway point between (or the middle of) the line segment, and the midpoint is exactly halfway between the beginning and exactly halfway between the end of the line segment, not a third of the way, etc.
Halfway between 8 and 9
the number that is halfway between -4 and 0 is -2
The state line of Louisiana and Mississippi is about the halfway point.
The halfway line seat number at Stamford bridge east upper stand is seat 40.
On the number line it is 3/1