The given sequence of transformations can be determined by comparing the coordinates of the vertices of TUVW and T'U'V'W':
1. Translation: T => T'
The x-coordinate of T has changed from 3 to -5 (shifted left 8 units), and the y-coordinate remains the same.
2. Reflection: U => U'
The x-coordinate of U has changed from 4 to -6 (reflected over the y-axis), and the y-coordinate remains the same.
3. Translation: V => V'
The x-coordinate of V has changed from 6 to -8 (shifted left 14 units), and the y-coordinate remains the same.
4. No transformation: W => W'
The coordinates of W remain the same.
Therefore, the sequence of transformations used to obtain figure T'U'V'W' from TUVW is:
Translation (left 8 units), Reflection (over the y-axis), Translation (left 14 units), No transformation.