Do you mean with a compass and pencil? If so, put the point of the compass on one end of the line. Set the radius to more than half of the line and describe an arc above and below the line.
Then move the point of the compass to the other end of the line, and keeping the radius the same, prescribe arcs above and below the line so that the arcs intersect the initial arcs. Then join the points of intersection (one on each side of the line) and you will have bisected the line. (It's easier to see with illustrations).
Bisect a segment is to divide the line segment into 2
A midpoint is in the middle of the line but does not bisect it because it is just a point on that line and does not cross the line.
No. Since a line is infinite, it has no mid-point. A bisector must go through a midpoint so nothing can bisect a line (not even a segment).
No its not.Take a look herehttp://wiki.answers.com/Q/How_do_you_divide_a_line_into_3_equal_parts. Also you can use the perpendicular bisector method to bisect a line. [Only if you're trying to bisect it into two equal parts]
Yes or 'True' ~