Use the graph to answer the Question below

What are the roots of the equation x2 + 3x - 4 = 0?

  • A 1, 4
  • B -1, -4
  • C -1, 4
  • D -4, 1
waec 2004mathematics

The correct answer is D. -4, 1

x2 + 3x – 4 = 0 has roots value at the curve makes touches with the x – axis. The curve contact is at x = -4 and +1.

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