Question: Drug spending medicaid spending on drugs in massachusetts started slowing down in part after the state demanded that patients use more generic drugs and limited the range of drugs available to the program. The annual pharmacy spending (in millions of dollars) from 1999 through 2004 is given by
S(t) = -1.806t3 + 10.238t2 + 93.35t + 583 (0 ≤ t ≤ 5)
Where t is measured in years with t = 0 corresponding to the beginning of 1999. Find the inflection point of s and interpret your result.