To find the coordinates of the new vertex \( A' \) after dilating the point \( A \) in reference to the origin with a magnitude of \( 3 \), we need the original coordinates of point \( A \).
Assuming the given points represent distances along the axes, let's summarize the coordinates:
- Point \( A \) is given as \( (0, 1) \).
To dilate a point \( (x, y) \) by a factor of \( k \), the new coordinates \( (x', y') \) are calculated as:
\[ x' = k \cdot x \] \[ y' = k \cdot y \]
Given \( k = 3 \) and the coordinates of point \( A \) as \( (0, 1) \):
\[ x' = 3 \cdot 0 = 0 \] \[ y' = 3 \cdot 1 = 3 \]
Thus, the coordinates of the new vertex \( A' \) would be:
\[ A' = (0, 3) \]
So, the final answer is:
\[ A' = (0, 3) \]