Final answer:
When reflecting a point over the x-axis, the x-coordinate remains the same, but the y-coordinate changes sign.
Step-by-step explanation:
When we reflect a point over the x-axis, the x-coordinate remains the same, but the y-coordinate changes sign. In this case, the original point is (3, -8). When we reflect it over the x-axis, the new point will have the x-coordinate of 3 and the y-coordinate of -(-8), which simplifies to 8. Therefore, the new point will be (3, 8).