Answer:
B. 2.
Step-by-step explanation:
You can find the average by substituting the given values in the function, then do an arithmetic average with results.
So, for X = - 1 you get f(-1) = 1
For X = 0 you get f(0) = 3
So, the average with 1 and 3 is 2. Because you sum numbers which results 4, and then divided by 2 (the amount of numbers involved in the average).
