PLEASE HELP MEEEE!!!!!!! I need help I don’t know if my answers are correct!!

Answer:
I am not sure what level of algebra you're at yet but this is what I would put.
Step-by-step explanation:
Q3 -
Domain: [tex]-3\leq x\geq 3[/tex]
Range: [tex]-3\leq x\geq 3[/tex]
Q4 -
Domain: All Real Numbers or
Range: [tex]y\leq 0[/tex]