In this problem, we have the function $y = f(x)\text{,}$ where $x$ and $y$ are just generic variables (no units). Decide if each situation below is possible.

1. Is it possible that $f(3)=10$ and $f(3) = 17\text{?}$
   yes
   no
2. Is it possible that $f(3)=10$ and $f(8) = 10\text{?}$
   yes
   no