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2017 AMC 10B Problem 10

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2017 AMC 10B Problem 10AMC 10 Step by Step
Name:                             Date: September 13, 2026
Coordinate Geometry · difficulty 2 of 5 · about 3 min · position P1-10

The lines with equations ax−2y=cax-2y=c and 2x+by=−c2x+by=-c are perpendicular and intersect at (1,−5)(1, -5) . What is cc ?

  1. A)

    −13-13

  2. B)

    −8-8

  3. C)

    22

  4. D)

    88

  5. E)

    1313

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