Question

three students attempt to define what a line segment is. can you match the teachers comments to the definitions? definition of a line segment teachers comments ivys definition: all of the points in line with p and q, extending infinitely in both directions. not quite. theres more to a segment than just how long it is. ethans definition: the exact distance from p to q. kudos! you are correct. ebukas definition: the points p and q which are called endpoints, and all of the points in a straight line between points p and q. are you thinking of a line instead of a line segment?

Explanation:

A line - segment is defined by two endpoints and all the points in between them in a straight line. Ivy's definition describes a line (infinite in both directions), not a line - segment. Ethan's definition gives the length of the line - segment, not the geometric concept of a line - segment itself. Chuka's definition correctly describes a line - segment as the two endpoints and all the points in a straight line between them.

Answer:

Ivy's definition - Are you thinking of a line instead of a line segment?
Ethan's definition - Not quite. There's more to a segment than just how long it is.
Chuka's definition - Kudos! You are correct.