Question

a line
has one endpoint
has two endpoints
goes on forever in both directions
is mad of two rays

Answer 1

Which of those describe a line?

- "goes on forever in both directions" — True. A line extends infinitely both ways and has no endpoints.
- "is made of two rays" — True in a sense: a line can be seen as the union of two opposite rays that start at the same point and extend infinitely in opposite directions.
- "has one endpoint" — False. A ray has one endpoint, not a line.
- "has two endpoints" — False. A line segment has two endpoints, not a line.

Short definitions:
- Line: infinite in both directions, no endpoints.
- Ray: starts at one endpoint and goes infinite in one direction.
- Line segment: portion of a line with two endpoints.