PLease I need a full correct answer.

Question $3[25$ points$]$ In a football game. we use the matrix $B=\left[\begin{array}{cc}3& 6\\ 8& 0\end{array}\right].$ The offense is the row player.

The first row is Run, the second is Pass. The first column is Defend against Run, the second is Defend against

Pass.

$($a$)$ Use a graphical method to solve this game.

$($b$)$ Now suppose the offense gets a better quarterback so the matrix becomes $A=\left[\begin{array}{cc}3& 6\\ 12& 0\end{array}\right].$ What happens?