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2011 AMC 10A Problem 9

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2011 AMC 10A Problem 9AMC 10 Step by Step

Name: Date: October 28, 2026

Coordinate Geometry · difficulty 2 of 5 · about 2 min · position P1-10

A rectangular region is bounded by the graphs of the equations $y=a, y=-b, x=-c,$ and $x=d$ , where $a,b,c,$ and $d$ are all positive numbers. Which of the following represents the area of this region?

A) $ac+ad+bc+bd$
B) $ac-ad +bc-bd$
C) $ac+ad -bc-bd$
D) $-ac-ad +bc+bd$
E) $ac-ad -bc+bd$

2011 AMC 10A Problem 9

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