Question

How many different ways can the line above be named? What are those names?

Answer 1

Its either 3 or 2 
the third way matches only if there's another reference  line 
I'll go with 3

Answer 2

Answer:

B.) 3 ways:  $t, \overleftrightarrow{FG}, \text{ and } \overleftrightarrow{GF}.$

Step-by-step explanation:

A line can be named using a single lowercase letter.  In this case, it would be t.

A line can also be named using two of the points on the line, in any order, with a line over them.  In this case, it could be either

$\overleftrightarrow{FG} \text{ or } \overleftrightarrow{GF}.$