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1 markPaper 1 · Multiple choiceDifferentiation I

CAPE Pure Mathematics Unit 1 · May/June 2010 · Paper 1 · Question Q13

An arch may be modelled by the Cartesian equation y = -2x^2 + 4x + 1, where x and y represent respectively horizontal and vertical distances. The coordinates of the HIGHEST point on the arch are

  1. (A)(1, 2)
  2. (B)(1, 3)
  3. (C)(2, 2)
  4. (D)(2, 3)

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