To find one value of x for which f(x) = 4, we first need to know the function f(x) itself. Since the function is not defined here, let’s assume a simple example where f(x) = x + 2.
In this case, we set up the equation:
x + 2 = 4
Now, solving for x:
x = 4 – 2
x = 2
So, one value of x for which f(x) = 4 is x = 2.
Next, we need to find f(2):
Using our function f(x) = x + 2:
f(2) = 2 + 2
f(2) = 4
Therefore, f(2) is also equal to 4. In summary, for the function f(x) = x + 2, the value of x for which f(x) = 4 is x = 2, and f(2) equals 4.