Let matrix A and the vectors v_1 and v_2 be defined below: A= \begin{bmatrix} -1 && -6 \\ 2 && -6 \end{bmatrix}

Let matrix A and the vectors v_1 and v_2 be defined below:  A=\begin{bmatrix} -1 && -6 \\ 2 && -6 \end{bmatrix}, v_1=(2;-1) and v_2=(3;-2). 

Show that A sends vectors v_1 and v_2 to scalar multiples of themselves and find the values of the scalars.