Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 3 - Section 3.4 - Slope and Rate of Change - Exercise Set: 58

Answer

Slope $=62$ Approximately, there's an increase of 62 billion dollars spent in tourism every year.

Work Step by Step

$y$ is the amount of money spent worldwide on tourism. $x$ is the year. Slope $=\frac{\Delta y}{\Delta x}$ Slope $=\frac{798-550}{2007-2003}$ Slope $=\frac{248}{4}$ Slope $=62$ Approximately, there's an increase of 62 billion dollars spent in tourism every year.
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