Question

graph {x|3 < x < 12}.

Explanation:

Step1: Identify inequality type

The inequality $3 < x<12$ is a compound - strict inequality.

Step2: Mark endpoints on number line

On the number line, mark open circles at $x = 3$ and $x = 12$ since the inequality is strict ($<$ not $\leq$).

Step3: Shade the interval

Shade the region between the open - circles at $x = 3$ and $x = 12$.

Answer:

On the given number line, place open circles at 3 and 12, and shade the region between them.