Answer:
a. x < -1/2 (I believe)
Explanation:
I know that because the circle is not filled in the symbol is not greater then or equal to. Hence, not c. I think that the graph is saying that x is less then -1/2.
"When graphing a linear inequality on a number line, use an open circle for "less than" or "greater than", and a closed circle for "less than or equal to" or "greater than or equal to"."