Between 1950 and 1980 the use of chemical fertilizers increased. The table lists worldwide average usage y
Question:
Between 1950 and 1980 the use of chemical fertilizers increased. The table lists worldwide average usage y in kilograms per hectare of cropland x years after 1950. 
(a) Graph the data. Are the data linear?
(b) Find a function f that models the data.
(c) Predict fertilizer usage in 1989. The actual value was 98.7 kilograms per hectare. What does this indicate about usage of fertilizer during the 1980s?
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Related Book For 
College Algebra With Modeling And Visualization
ISBN: 9780134418049
6th Edition
Authors: Gary Rockswold
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