In the given graph, we can observe that point $A$ has the coordinates $(3, 4)$.

To find the coordinates of the point $A'$ after reflecting over the $y$-axis, we need to change the sign of the $x$-coordinate while keeping the $y$-coordinate the same.

So the reflection of point $A(3, 4)$ over the $y$-axis will give us: $A'( -3, 4)$

Thus, the correct ordered pair for $A'$ is $(-3, 4)$.

The correct answer is: (−3, 4)

Would you like further details on this reflection, or have any other questions?

Here are five related questions to expand your understanding:

1. What are the coordinates of point $B$ and $C$ after reflecting over the $y$-axis?
2. How would the coordinates change if we reflected $A$ over the $x$-axis instead?
3. Can you describe the general rule for reflecting a point over the $x$-axis?
4. What are the properties of reflections over the coordinate axes?
5. How would you reflect a point over the line $y = x$?

Tip: When reflecting a point over the $y$-axis, only the $x$-coordinate changes sign, while the $y$-coordinate remains unchanged.