Question

what is a number line?

Answer 1

A number line is a line which shows intervals between a given range. We use number lines to represent inequalities. 5

Answer 2

It is a line that has intervals to mark numbers between a given range. A number line is typically used to characterize simple numerical operations.

E.g. Say someone needs to do a problem using positive and negative numbers. They can use a number line to help solve, -5 plus 6.

 Hope this helps.