8. President X signed into law Republic Act No. 1213, which set fixed rates for the just compensation of properties across various regions of the Philippines in order to expedite the resolution of expropriation cases and to prevent lengthy and costly litigation. One of the affected landowners, Y, challenged the constitutionality of Republic Act No. 1213, asserting that the determination of just compensation is not a legislative function. The Republic of the Philippines, represented by the Office of the Solicitor General (OSG), countered that since expropriation is an exercise of the power of eminent domain belonging to the legislature, just compensation may be fixed by law. Decide with reason(s).