Question

question
express the interval shown on the number line in interval notation.
answer attempt 1 out of 2
interval notation:

Explanation:

Step1: Identify endpoints

The number line has closed circles at $-9$ and $2$, so these values are included in the interval.

Step2: Determine interval direction

The segment connects $-9$ to $2$, so the interval includes all numbers between these two endpoints.

Step3: Write interval notation

Use square brackets for included endpoints, format as $[a, b]$.
$[-9, 2]$

Answer:

$[-9, 2]$