Question

which methods could you use to calculate the x coordinate of the midpoint of a horizontal line segment with endpoints at (0,0) and (20,0)

Answer 1

The method you can use is to find the midcoordinate of the x coordinate.

Notice that the y coordinate is the same, that is, the line is a horizontal line.

This is the reason why you only focus on the x coordinate.

The difference in between the x coordinates of bothpoints is 20. Then,

in this case, it is enought by dividing 20 by 2 to find the midpoint.