Precalculus, Chapter 1, Review Exercises, Section Review Exercises, Problem 46

Sketch a graph of $y = \sqrt{x}$.

Using Table of Values

$\begin{array}{c|c}
x & y \\
\hline\\
0 & 0 \\
1 & 1 \\
4 & 2 \\
9 & 3
\end{array} $