[tex]1 \leqslant 11.25[/tex]
Depending on the scenario you would either shade everything in between these two points or it can be any real number/ point on the graph.
There isn't much info to go on how they visually want to see it.
Like you could easily graph this as a number line and shade everything from 1 to 11.25 and put a solid dot on both sides.
