Question

The number of people who donated to a certain organization between 1975 and 1992 can be modeled by the equation donors, where t is the number of years after 1975. Find the inflection point(s) from through , if any exist.
A) There are no inflection points from through .
B) There is one inflection point at .
C) There are inflection points at and .
D) There is one inflection point at .
E) There are inflection points at , , and .

Answer

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