2. Let A be the set of points in the xy−plane satisfying the equation |x| + |y| = 7. The area of A is equal to A. 7 B. 28 C. 42 D. 63 E. 98

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.2: The Law Of Cosines
Problem 48E
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2. Let A be the set of points in the xy−plane satisfying the equation |x| + |y| = 7. The area of A is equal to


A. 7

B. 28

C. 42

D. 63

E. 98

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