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From the graph determine the roots of the equation y = 2x\(^2\) + x -...

Mathematics
WAEC 1990

From the graph determine the roots of the equation y = 2x\(^2\) + x - 6

  • A. -3, 4
  • B. -2, -6
  • C. -2, 1.5
  • D. -1, 1
  • E. 2, 1.5
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Correct Answer: Option C
Explanation

Where the curve cut x-axis is the root of the equation i.e. x = -2.0 and x = 1.5

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