To find the coordinates of T' after a 180-degree rotation about the origin, we need to apply the rotation mapping for 180 degrees.
The general formula for rotating a point (x, y) by 180 degrees around the origin is:
\[ (x, y) \rightarrow (-x, -y) \]
For point T, which has coordinates (5, -1):
- Apply the rotation mapping:
- x-coordinate: -5
- y-coordinate: 1
Thus, the coordinates of T' after the rotation will be:
T' = (-5, 1)
So, T' is at the coordinates (-5, 1).