\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
Let \(\pi_0 = \begin{pmatrix} 0.6 & 0.4 \end{pmatrix}\) and \(\mathbf{M} = \begin{pmatrix} 0.7 & 0.3 \\ 0.2 & 0.8 \end{pmatrix}\). What is \(\pi_1\)?