Answer:
x<4
Explanation:
The graph is not ending therefore X can be only lower than 4. -4 wouldn't be considered to be in the answer as it is a value of x itself. Also, X can't be greater than 4 because 4 is the starting point of the graph. So the X is always lower than 4 and can equal -4. So it would be x<4.
hope that helps!