Answer:
[tex]y\leq 1[/tex]
Step-by-step explanation:
The range of a function is all the values that [tex]y[/tex] could take, in this graph the highest value for [tex]y[/tex] is 1, because of this the answer must include all values bellow 1.
Also, the value is marked with a filled point, this means [tex]y[/tex] takes this value, so the answer needs to contain [tex]y=1[/tex], putting all together [tex]y\leq 1[/tex].
