The question asks for the coordinates of point $B$ after the shape is reflected over the $y$-axis.

Step-by-step solution:

1. Coordinates of Point B: The original coordinates of point $B$ are $(2, 5)$.

2. Reflection Over the $y$-axis:

   • When reflecting a point over the $y$-axis, the $x$-coordinate changes its sign, while the $y$-coordinate remains the same.
   • Therefore, the reflection of point $(x, y)$ over the $y$-axis will be $(-x, y)$.

3. Apply the Reflection:

   • The $x$-coordinate of $B$ is 2, so after reflecting over the $y$-axis, it becomes $-2$.
   • The $y$-coordinate remains 5.

4. Result: The new coordinates of the vertex that point $B$ maps to are $(-2, 5)$.

Would you like more details on the reflection process or have any other questions?

Here are five related questions for further practice:

1. What are the coordinates of the vertex at $(1, 3)$ after reflecting over the $y$-axis?
2. How would the shape look if reflected over the $x$-axis instead?
3. What happens to the coordinates if the shape is rotated 180 degrees about the origin?
4. What are the coordinates of point $B$ after translating it 3 units to the left?
5. How would the reflection change if we reflected over the line $x = 1$?

Tip: When reflecting over the $y$-axis, only the sign of the $x$-coordinate changes, while the $y$-coordinate stays the same.