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PRICE OF IVORY According to the World Wildlife Fluid, a group in the forefront of the fight against illegal ivory trade, the price of ivory (in dollars per kilogram) compiled from a variety of legal and black market sources is approximated by the function
where t is measured in years, with t = 0 corresponding to the beginning of 1970.
- a. Sketch the graph of the function f.
- b. What was the price of ivory at the beginning of 1970? At the beginning of 1990?
Source: World Wildlife Fund.
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