14 13 12 11 10 9 8 7 6 5 4 3 2 4 6 8 10 12 14 16 18 20 The per capita consumption of breakfast cereal in the US has the following model that appears abov C( t ) = -0.004+³ + 0.087ť² – 0.346t + 11.55 pounds, where t is the number of years since 1990. Decide whether the rate of consumption was changing more rapidly in 2006 or 2008. C'(16) = lbs/year C'(18) = lbs/year The rate was changing more rapidly in 2006 2008.

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