Question

which of the following best describes a line?
a flat surface that extends infinitely
a straight path that extends infinitely in both directions
a straight path with one endpoint
a part of a line with two endpoints

Explanation:

• "A flat surface that extends infinitely" describes a plane, not a line.
• "A straight path that extends infinitely in both directions" matches the geometric definition of a line.
• "A straight path with one endpoint" describes a ray, not a line.
• "A part of a line with two endpoints" describes a line segment, not a line.

Answer:

B. A straight path that extends infinitely in both directions