Question

Which best describes the dimensions of a line?

A line has zero dimensions because it represents a location on the coordinate plane.
A line has one dimension because it is made up of all points that extend infinitely in either direction.
A line has two dimensions because it is made up of three noncollinear points.
A line has multiple dimensions depending on how many labeled points it contains.

Answer 1

B. A line has one dimension because it consists of points extending along a single direction (infinitely in both directions) and can be described by one coordinate/parameter.