Silver iodide is a sparingly soluble salt. Silver also forms a soluble complex ion, AgI2–, with iodi — Equilibrium Chemistry Question

Silver iodide is a sparingly soluble salt. Silver also forms a soluble complex ion, AgI₂–, with iodide ion. A series of solutions saturated with solid AgI and containing various concentrations of dissolved iodide ion are prepared, and the total concentration of silver dissolved in each solution is measured. Which graph of the logarithm of the total silver concentration as a function of the logarithm of the iodide concentration best represents the results of this experiment?