So the positive and negative numbers know where to start.
Left of the 0 figure on the number line.
the number 0
There is an infinite amount of numbers between 0 and 1 on the number line.
-1.35678 is one of infinitely many possible answers.
... equal to the number.
It is the number minus 0
The number line is scalable, meaning it can be any distance you want.
the number that is halfway between -4 and 0 is -2
0 1 2
0.7 is located on the number line between 0 and 1.
infinity (∞)
Its absolute value.