Question

According to the Ruler Postulate, what does the set of points on any line correspond to?

A: real numbers
B: natural numbers
C: rational numbers
D: irrational numbers

Answer 1

Positive numbers are easy to picture: {* * *} = 3,

but what about negative numbers? Show me -3?

The answer is I can not! Unless, I use a number line and have a left and right rule:

Numbers to the left of the origin are negative, and those to the right are positive.

Together these numbers make-up the real numbers,

and can be paired with points on a number line.