1. The question asks why the function was not evaluated at $f(1)$. 2. To evaluate $f(1)$, you substitute $x=1$ into the function's formula. 3. For example, if $f(x) = 2x + 3$, then $f(1) = 2(1) + 3 = 2 + 3 = 5$. 4. Evaluating $f(1)$ means finding the output of the function when the input is 1. 5. This step is important to understand the behavior of the function at specific points. 6. If you provide the function formula, I can show you exactly how to calculate $f(1)$.