If
\[
\begin{bmatrix}
1
1
\end{bmatrix}
\]
is an eigenvector of the matrix
\[
A=
\begin{bmatrix}
m& 3 \\
3& m
\end{bmatrix},
\]
then the corresponding eigenvalue is:
Show Hint
If all components scale equally after multiplication, that scale factor is the eigenvalue.