3
Step-by-step explanation:
This is a piece-wise function. The domain [x-values] is broken down into parts.
To evaluate this type of functions, we see in WHICH PART of the DOMAIN does the questions ask to look for.
The question asks for , the value of the function at Â
In which of the 3 parts does   fall into?
The domain condition,   , in the last part tells us that it is GREATER THAN OR EQUAL TO 3. So   falls in this part of the function, which is Â
We can simply substitute 3 in of that part and get our desired answer. So,
The value of