If you have a graph with a closed circle at \(-9.5\) and a line extending to the left, it indicates that the solution set includes \(-9.5\) and all values less than \(-9.5\).
Therefore, you would fill in the blank with the inequality:
\[ x \leq -9.5 \]
This means that any value \(x\) is a solution as long as it is less than or equal to \(-9.5\).