Answer:
adbe
Step-by-step explanation:
What this is asking is for you to plug values into the following function:

Since the question is asking you to find

, this is how you work it out:
You take the function;

And plug the numbers indicated in for x;

So the answer to f(3) - f(1) =
Answer:
Can you please explain it as a different way I do understand you but I don't know how to explain it