Line
Yes. If it is not straight, then it is not a line.
it just a straight line
If it is not straight, then it is not a line.
The word straight does have an antonym, which is crooked. So perhaps a crooked line is the opposite of a straight line.
"Ray"
Line
a line
a straight line. it's such a simple question that your question looks like a joke
A line.
No, endless is an adjective, a word that describes a noun. Some examples are 'an endless wait for the flight to take off'; 'an endless line at the check out'; or 'an endless pile of bills'.The noun form is endlessness.
Yes. If it is not straight, then it is not a line.
A Line ;)
a line.
line
Displacement of a straight line is zero...
A straight line has no vertex.