Lines
Lines are... well, lines! But there are many different types of lines, including these:
1. Rays
2. Lines
3. Line segments
Rays, have one starting point, but keep going on forever in one direction, they can be represented by a dot, a line coming from the dot, and an arrow at the end of the line. Look above at example A.
Lines, have no starting point, and keep going on forever in both directions, this can be represented by a line with an arrow on each side of it. Look above at example C.
Line segments have two starting points, and don't go on forever, they can be represented by a line, with a dot on each side.
Look above at example B.
1. Rays
2. Lines
3. Line segments
Rays, have one starting point, but keep going on forever in one direction, they can be represented by a dot, a line coming from the dot, and an arrow at the end of the line. Look above at example A.
Lines, have no starting point, and keep going on forever in both directions, this can be represented by a line with an arrow on each side of it. Look above at example C.
Line segments have two starting points, and don't go on forever, they can be represented by a line, with a dot on each side.
Look above at example B.