The graph covers two different conditions which is identified by the red line :
The first red line starts from - 3 and arrows to the left this represents the condition x < - 3 ; because of the movement to the left.
The Second redline starts from 1, with the starting point shaded then arrow points to the right of the number line this represents two conditions (rightward direction means greater Than, shaded starting point means =) Hence the condition is ≥ 1
