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The graph above is correctly represented by

Mathematics
JAMB 2013

The graph above is correctly represented by

  • A. y = x2 - x - 2
  • B. y = x2 - 3x + 2
  • C. y = x2 - x - 1
  • D. y = x2 + x - 2
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Correct Answer: Option A
Explanation

The graph crosses the x-axis at x = -1 and x = 2

Thus, x + 1 = 0 and x - 2 = 0

x\(^2\) - 2x + x - 2 = 0

x\(^2\) - x - 2 = 0

giving y = x\(^2\) - x - 2

There is an explanation video available below.


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Explanation Video

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