Answer
$\lt 2,2 \gt$
Work Step by Step
Find vector for $ \vec {AB}$
$ \vec {AB}=\lt x_2-x_1,y_2-y_1 \gt$
$ \vec {AB}=\lt 3-1,2-0 \gt$
$ \vec {AB}=\lt 2,2 \gt$
The equivalent representation starting at the origin is a vector from point $(0,0)$ to the point $\lt 2,2 \gt$.