Yes, it does.
Yes.
Yes, it does.
real number
No. It could be a rational or an irrational
Any real number can correspond to a point on a line.
In basic mathematics, a number line is a picture of a graduated straight line that serves as abstraction for real numbers, denoted by R{\displaystyle \mathbb {R} }. Every point of a number line is assumed to correspond to a real number, and every real number to a point. Often integers are shown as specially-marked points evenly spaced on the line.
Do you mean a number line?The question you asked contains the answer. Every point on a number line corresponds to a number, and every number has a corresponding point on the number line.
It's a number line!!
It is any real line.
Yes, as long as the number line is entirely real.
No. The real number line corresponds to rational AND irrational numbers.
Yes.