The figure below shows four named points $A,B,C,$ and $D$ on a grid generated by two vectors vec$(v{)}_1,$vec$(v{)}_2$ in $R^2.$

Part $1$

Part $2$

Write each vector as a sum of scalar multiples of vec$(v{)}_1$ and vec$(v{)}_2.$ Enter $v1$ for vec$(v{)}_1$ and $v2$ for vec$(v{)}_2.$

vec$(AB)=$

vec$(BA)-$vec$(CA)=$

$C-9v_2=$

$D-9$vec$(DA)=$