Yes, if no endpoints are defined.
points
An infinite set of points can be a microscopically small line segment. An infinite number of points does not mean an infinitely long line.
a line
an infinite number
Yes, it can.
points
A line, ray, or line segment contains an infinite number of points.
A line is made up of an infinite number of points.
Yes. Even the shortest line has an infinite number of points.
An infinite set of points can be a microscopically small line segment. An infinite number of points does not mean an infinitely long line.
a line
an infinite number
An infinite number
Yes, it can.
A line contains an infinite number of points but it takes only two points to determine a line.
A point has no size, and a line is of infinite length, so it contains an infinite number of points. It takes only two points to describe or identify a line, but number of points it contains is infinte. Actually, even a line segment has an infinite number, since it is not possible to get two points so close together that another point won't fit between them.
An infinite number. Each point on a line, however small the line is, can have a perpendicular through it. And since there are an infinite number of points on any line, the answer is an infinite number.