#### Answer

See graph and explanations.

#### Work Step by Step

See graph. It can be seen that the carbon dioxide concentration increased from 1990 ($x=30$) to 2008 ($x=48$) with modulations on the curve due to the sine function in the equation.

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Published by
Pearson

ISBN 10:
0-13446-914-3

ISBN 13:
978-0-13446-914-0

See graph and explanations.

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