Finite Math and Applied Calculus (6th Edition)

Published by Brooks Cole
ISBN 10: 1133607705
ISBN 13: 978-1-13360-770-0

Chapter 13 - Section 13.4 - The Definite Integral: Algebraic Viewpoint and the Fundamental Theorem of Calculus - Exercises - Page 999: 50

Answer

$\dfrac{53}{6}$

Work Step by Step

We are given that $y=|3x-2| $ and $x=0$ to $x=3$ Here, the area $(A)$ can be expressed as: $A=\int_0^{3} |3x-2| \ dx$ In order to solve the above integral, we will use the following formula such as: $\int |ax+b| \ dx=\dfrac{1}{2a}(ax+b)|ax+b|+C$ Now, we have $A=[\dfrac{1}{(2)(3)} (3x-2)|3x-2|]_0^3 $ or, $=[\dfrac{1}{6} (3x-2)|3x-2|]_0^3$ or, $=[\dfrac{1}{6} (9-2)|9-2|]-[\dfrac{1}{6} (0-2)|0-2|]$ or, $=\dfrac{49}{6}+\dfrac{4}{6}$ Therefore, the required area is: $Area=\dfrac{53}{6}$
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