Sample Response: Since the circle is open, the symbol must be < or >, because the boundary point is not included. The arrow points left, so the solution set includes all values less than the boundary point. I would use < in my inequality. Which did you consider in your response? Check all that apply. Whether the circle is open or closed determines whether the boundary point is included in the solution set. The direction of the arrow indicates whether the inequality involves greater than or less than.