Final answer:
The value of the function f(x) = 2(x - 4) at x = 4 is 0, found by substituting 4 into the function and simplifying.
Step-by-step explanation:
The question asks for the value of the function f(x) = 2(x - 4) when x = 4. To find this, we simply substitute the value of x into the function:
f(4) = 2(4 - 4) = 2(0) = 0
So, the value of f(4) is 0.