Calculus: Early Transcendentals 8th Edition

Published by Cengage Learning
ISBN 10: 1285741552
ISBN 13: 978-1-28574-155-0

Chapter 5 - Section 5.2 - The Definite Integral - 5.2 Exercises - Page 390: 52

Answer

C. The value of $F(2)$ is the largest since it is the only value that is not negative.

Work Step by Step

The integral $\int_{a}^{b}f(x)~dx$ is equal to the area between the graph and the x-axis. An area below the x-axis is negative, while an area above the x-axis is positive. Note that: $\int_{a}^{b}f(x)~dx=-\int_{b}^{a}f(x)~dx$ A. $F(0) = \int_{2}^{0}f(t)~dt = -\int_{0}^{2}f(t)~dt \lt 0$ B. $F(1) = \int_{1}^{0}f(t)~dt = -\int_{0}^{1}f(t)~dt \lt 0$ C. $F(2) = \int_{2}^{2}f(t)~dt = 0$ D. $F(3) = \int_{2}^{3}f(t)~dt \lt 0$ E. $F(4) = \int_{2}^{4}f(t)~dt \lt 0$ The value of $F(2)$ is the largest since it is the only value that is not negative.
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