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2006 AMC 10A Problem 11

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2006 AMC 10A Problem 11AMC 10 Step by Step
Name:                             Date: September 13, 2026
Coordinate Geometry · difficulty 2 of 5 · about 1 min · position P11-15

Which of the following describes the graph of the equation (x+y)2=x2+y2(x+y)^2=x^2+y^2 ?

  1. A)

    the empty set\text{the empty set}

  2. B)

    one point\textrm{one point}

  3. C)

    two lines\textrm{two lines}

  4. D)

    a circle\textrm{a circle}

  5. E)

    the entire plane\textrm{the entire plane}

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