When a figure is translated to the left by 6 units and up by 5 units, the effect on the coordinates of the vertices can be described as follows:
- To translate the figure to the left by 6 units, you subtract 6 from each x-coordinate.
- To translate the figure up by 5 units, you add 5 to each y-coordinate.
Thus, the correct description of the transformation is:
Subtract 6 units from each x-value and add 5 units to each y-value.