Find the value of 3

Question

Use the given function:
f(x) = {x+3,−x/3,if 0≤x<2if 2≤x≤5
Find the value of f(3).

Answer 1

What you have here, I believe, is a 'piecewise' function.

 

Since you want to know f(3), evaluate the definition that applies when x = 3; that is, compute

-3/3; the answer is f(3) = -1.