Determine if $\lambda$ is an eigenvalue of the matrix $A$.

Select an Answer Yes No  1. $A = \left[\begin{array}{cc} -14 &9\cr -30 &19 \end{array}\right]$ and $\lambda = 4$

Select an Answer Yes No  2. $A = \left[\begin{array}{cc} -6 &-7\cr 14 &15 \end{array}\right]$ and $\lambda = 8$

Select an Answer Yes No  3. $A = \left[\begin{array}{cc} 13 &-12\cr 18 &-17 \end{array}\right]$ and $\lambda = 0$