To rotate the line segment with endpoints (0, -3) and (0, -7) 90° clockwise, we can use the rotation formula for clockwise rotation about the origin, which is:
\[ (x, y) \rightarrow (y, -x) \]
Let's apply this to each endpoint:
- For the point (0, -3):
\[ (0, -3) \rightarrow (-3, 0) \]
- For the point (0, -7):
\[ (0, -7) \rightarrow (-7, 0) \]
So, after rotating 90° clockwise, the endpoints of the segment are (-3, 0) and (-7, 0).
One of the endpoints after rotation is:
\[ \text{Answer: } (-3, 0) \]