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2011 AMC 10A Problem 9

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2011 AMC 10A Problem 9AMC 10 Step by Step
Name:                             Date: September 13, 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,y=a, y=-b, x=-c, and x=dx=d , where a,b,c,a,b,c, and dd are all positive numbers. Which of the following represents the area of this region?

  1. A)

    ac+ad+bc+bdac+ad+bc+bd

  2. B)

    ac-ad +bc-bd

  3. C)

    ac+ad -bc-bd

  4. D)

    -ac-ad +bc+bd

  5. E)

    ac−adac-ad

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