California Assessment of Student Performance and Progress (CAASPP) Math Practice Exam

A line segment is defined as a part of a line that is bounded by two distinct endpoints. This means that a line segment has a defined length and does not continue indefinitely like a full line, which extends endlessly in both directions. The presence of two endpoints gives the line segment its specific measurable distance. The other options describe different geometric concepts: a line that extends indefinitely in both directions refers to a straight line, while a portion of a line with no endpoints is an incorrect characterization of a line segment, as it implies an infinite length. Lastly, a figure that has volume usually refers to three-dimensional shapes, which is not relevant to line segments, as they are inherently one-dimensional.