Question

classify each figure as a line, ray, or line segment. then, show how to write it.
(a) figure: l m with an arrow pointing left from l; type: o line o ray o line segment; how to write it: $overrightarrow{lm}$
(b) figure: g h; type: o line o ray o line segment; how to write it: $overline{gh}$
(c) figure: j k with arrows pointing left from j and right from k; type: o line o ray o line segment; how to write it: $overleftrightarrow{jk}$

Explanation:

Step1: Identify figure (a)

It has one - endpoint and extends infinitely in one direction, so it's a ray. Represented as $\overrightarrow{LM}$.

Step2: Identify figure (b)

It has two endpoints, so it's a line segment. Represented as $\overline{GH}$.

Step3: Identify figure (c)

It extends infinitely in both directions, so it's a line. Represented as $\overleftrightarrow{JK}$.

Answer:

(a) Type: ray, How to write it: $\overrightarrow{LM}$
(b) Type: line segment, How to write it: $\overline{GH}$
(c) Type: line, How to write it: $\overleftrightarrow{JK}$