Final answer:
The total water potential of the plant cell is -2.
Step-by-step explanation:
The total water potential of a plant cell is the sum of the solute potential (Ys) and the pressure potential (Yp). In this case, the solute potential is -2 and the pressure potential is 0. To find the total water potential, we simply add these two values together:
Total water potential = Ys + Yp
Total water potential = -2 + 0
Therefore, the total water potential of the cell is -2.