Answer
see graph
Work Step by Step
The computations below show some of the values of $x$ and $f(x)$ in the given equation, $
f(x)=4\sqrt{x}
.$
If $x=-1,$ then
\begin{array}{l}\require{cancel}
f(x)=4\sqrt{-1}
\\
f(x)=\text{not a real number}
\\\text{(*Note that the square root of negative numbers are imaginary numbers)}
.\end{array}
If $x=0,$ then
\begin{array}{l}\require{cancel}
f(x)=4\sqrt{0}
\\
f(x)=4(0)
\\
f(x)=0
.\end{array}
If $x=1,$ then
\begin{array}{l}\require{cancel}
f(x)=4\sqrt{1}
\\
f(x)=4(1)
\\
f(x)=4
.\end{array}
If $x=4,$ then
\begin{array}{l}\require{cancel}
f(x)=4\sqrt{4}
\\
f(x)=4(2)
\\
f(x)=8
.\end{array}
If $x=9,$ then
\begin{array}{l}\require{cancel}
f(x)=4\sqrt{9}
\\
f(x)=4(3)
\\
f(x)=12
.\end{array}
Using the table of values below, the graph of the given function is shown.