Answer
$25$
Work Step by Step
As in the figure below, the area will be the area of a triangle as follows
$$
\int_{-2}^{1} 3 x +4 d x=\frac{50}{2} =25.
$$
Calculus (3rd Edition)
by Rogawski, Jon; Adams, Colin
Published by
W. H. Freeman
ISBN 10:
1464125260
ISBN 13:
978-1-46412-526-3
Chapter 5 - The Integral - 5.2 The Definite Integral - Exercises - Page 244: 2
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