Answer
The complete table is shown below.
Work Step by Step
Let $f(x)=5x+1$.
Substitute $x=0$.
$\Rightarrow f(0)=5(0)+1$
$\Rightarrow f(0)=1$
Substitute $x=1$.
$\Rightarrow f(1)=5(1)+1$
$\Rightarrow f(1)=5+1$
$\Rightarrow f(1)=6$
Substitute $x=2$.
$\Rightarrow f(2)=5(2)+1$
$\Rightarrow f(2)=10+1$
$\Rightarrow f(2)=11$
Substitute $x=3$.
$\Rightarrow f(3)=5(3)+1$
$\Rightarrow f(3)=15+1$
$\Rightarrow f(3)=16$
Substitute $x=4$.
$\Rightarrow f(4)=5(4)+1$
$\Rightarrow f(4)=20+1$
$\Rightarrow f(4)=21$.