A. By substituting the given point.
In this case y=4 and x=3, so we have
[tex]\begin{gathered} 3=\frac{1}{4}(4)+3 \\ 3=\frac{4}{4}+3 \\ 3=1+3 \\ 3=4\text{ !!!} \end{gathered}[/tex]
which is an absurd. This imply that this point doesnt belong to the line.
Now, we will make the graph:
where we can see that this point is not into the line
