The number line provided indicates a range between $-3$ and $2$, inclusive, as shown by the solid dots at $-3$ and $2$. This suggests the interval includes both $-3$ and $2$.

In interval notation, this is written as:

$[-3, 2]$

Let me know if you'd like further details or have any questions!

Here are 5 related questions:

1. What is the difference between open and closed intervals in interval notation?
2. How would the interval change if one of the endpoints was excluded?
3. How can you express intervals that extend to infinity?
4. What is the union of two intervals, and how is it written in interval notation?
5. How do you represent a set of disjoint intervals?

Tip: In interval notation, square brackets $[ ]$ indicate that endpoints are included, while parentheses $( )$ indicate that they are not.