## Thinking Mathematically (6th Edition)

The intersection of $\overline{AD}$ and $\overrightarrow{DB}$ is$\overline{\text{AD}}$.
The intersection of two figures refers to the point that is common in both the figures. As clear from the image, the point D lies in $\overline{AD}$ as well as in $\overrightarrow{DB}$ and also the point B lies in $\overline{AD}$ as well as $\overrightarrow{DB}$. Thus, the intersection point of $\overline{AD}$ and $\overrightarrow{DB}$will be point D. Here, $\overline{AD}$ be the line segment and $\overrightarrow{DB}$ be the line. Hence, the intersection of $\overline{AD}$ and $\overrightarrow{DB}$ is$\overline{\text{AD}}$.