Question

describe [-4, 10] looks like

Answer 1

The square brackets mean that the number can be anywhere from -4 to 10. In algebraic notation, it would look like \(-4 \le x \le 10\). It's difficult to say what it looks like without knowing whether the domain is natural numbers, integers, rational numbers, or real numbers.

Answer 2

|-------------------0----------------------------------|
-4 10

Answer 3

Natural numbers, and integers look like dots on a number line:
\(<------*---*---*---*---------->\)
5 6 7 8 9 10 11

Rational numbers, and real numbers are thicker versions of the number line, with a circle (for \(x<n\)) or a dot (for \(x \le n\)).
\(<------*==================O------>\)
5 6 7 8 9 10 11
The above is [6,10). Note that 6 is included as a dot in both cases, but 10 does not have a dot for natural numbers, or integers, and it has a circle when it refers to rational or real numbers.