Hello Lavonnya,
Since Point C is translated 5 units to the left, that means you slide it horizontally and 5 units behind. Because the only change from C to C' was the horizontal slide by 5 units back
- the y-coordinate of C' will be the same as the y-coordinate of C: y' = 9
- the x-coordinate of C' will be the x-coordinate of C, MINUS 5: x' = -1 - 5 = -6
Therefore, the coordinates of C' are (-6,9)