Some one please help and find the domain and range. If your not sure about your answer don’t give the answer unless your 100% sure.

Answer:
Domain x=1 and range is 0≤f(x)≤3
Step-by-step explanation:
Domain corresponds to the value of x and range corresponds to the value of y
Here we see the graph exists at x=1 so the domain is x=1 or simply 1 and the range is a range of values from 0 to 3 so we write it in the way
0≤f(x)≤3