Let N be the set of natural numbers. Define a real valued function \( f: N \rightarrow N \) by \( f(x) = 2x + 1 \). Using this definition, complete the table given below. \( \begin{array}{c|c|c|c|c|c|c|c} x & 1 & 2 & 3 & 4 & 5 & 6 & 7 \\ \hline y & f(1) = \ldots & f(2) = \ldots & f(3) = \ldots & f(4) = \ldots & f(5) = \ldots & f(6) = \ldots & f(7) = \ldots \end{array} \)