Answer:
x ≤ 1
Explanation:
In the graph shown, the blue arrow is facing to the left, so we know that the inequality is some kind of less-than inequality (x < number).
We can also see that the blue arrow starts at a filled-in circle, so we know that the inequality will use the less-than-or-equal-to relator (≤).
Finally, the filled-in dot is at 1, so we can construct the equation:
x ≤ 1
Note that you could replace x with any other variable or even a blank space, since it isn't specified by the number line.