When a point is reflected over the x-axis, its y-coordinate changes sign, while the x-coordinate remains the same.

Given point $A = (-2, -10)$:

1. The x-coordinate stays the same: $-2$.
2. The y-coordinate changes from $-10$ to $10$.

Thus, the coordinates of $A'$ are:

Answer: $(-2, 10)$

Would you like more details or have any questions?

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Here are some related questions to explore:

1. What happens if a point is reflected over the y-axis instead?
2. How would you reflect a point over both the x- and y-axes?
3. How do you find the midpoint between two points, such as A and A'?
4. What are some real-world applications of reflection in geometry?
5. How would you reflect a point over a line other than the x- or y-axis?

Tip: When reflecting over the x-axis, only the y-coordinate changes; for the y-axis, only the x-coordinate changes.