GRE Problem Solving Question 383

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Source: Magoosh

In the x*y-coordinate system, points (2, 9) and (-1, 0) lie on line k. If the point (n, 21) lies on line k, what is the value of n?

  • A 6
  • B 7.0
  • C 8
  • D 9
  • E 10

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