That is an expression of the inequality:
x>5
The 5 isn't shaded and the line goes right, indicating the variable is greater than 5 but not "greater than or equal to"
Extra Clarification:
When the variable is greater than or equal to a number the circle will be shaded in and the arrow will point right. This is the same for less than or equal to; the circle would be shaded in and the arrow would be going left (since this is LESS than).
When a variable is less than a number the circle will not be shaded and the arrow will pint left.