Question

classify each figure as a line, ray, or line segment. then, show how to write it.
(a) figure: a figure with two endpoints p and q
type: ○line ○ray ○line segment
how to write it: blank
(b) figure: a figure with endpoint s, passing through r, and an arrow pointing right
type: ○line ○ray ○line segment
how to write it: blank
(c) figure: a figure with arrows pointing in both directions, passing through t and u
type: ○line ○ray ○line segment
how to write it: blank

Explanation:

Step1: Classify Figure (a)

The figure has two endpoints, so it is a line segment. It is written as $\overline{PQ}$.

Step2: Classify Figure (b)

The figure has one endpoint and extends infinitely in one direction, so it is a ray. It is written as $\overrightarrow{SR}$.

Step3: Classify Figure (c)

The figure extends infinitely in both directions, so it is a line. It is written as $\overleftrightarrow{TU}$.

Answer:

Figure	Type	How to write it
(b)	ray	$\overrightarrow{SR}$
(c)	line	$\overleftrightarrow{TU}$