The correct way to graph the inequality \( x \leq -3 \) on a number line is to plot a closed point at \(-3\) (indicating that \(-3\) is included in the solution set), and then draw an arrow extending indefinitely to the left (indicating that all values less than or equal to \(-3\) satisfy the inequality).
Based on your descriptions, the correct graph is:
- A closed point is plotted at negative 3. An arrow extends indefinitely left from the closed point past negative 8 along the number line.
This shows that all values less than or equal to \(-3\) are included in the solution.