Geometry

The proper way to write a line passing through points D and F is D..

 

Here's an analysis of each option:

A.DF: This notation is rather ambiguous. It could potentially refer to the distance between points D and F, or other things depending on the context. It's not the standard way to denote a line.

 

B.: This represents a vector from point D to point F. A vector has both magnitude and direction, and it is not the same as a line. A vector indicates a displacement or a directed quantity from one point to another, not an infinite straight path like a line.

 

C.

Click "Show Answer" to reveal the answer and analysis