In each case, state whether the described growth and/or decay is linear or exponential, and explain why. (a) The insect population on land has been decreasing by 9% per decade, but the insectpopulation in water has been increasing by 11% per decade. (b) The typical child grows about 2.6 inches in height each year.

College Algebra (MindTap Course List)
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ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
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Chapter8: Sequences, Series, And Probability
Section8.4: Geometric Sequences And Series
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In each case, state whether the described growth and/or decay is linear or exponential, and explain why.

(a) The insect population on land has been decreasing by 9% per decade, but the insectpopulation in water has been increasing by 11% per decade.

(b) The typical child grows about 2.6 inches in height each year.

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