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If y = x2 - 2x - 3, Find the least value of y and...

Mathematics
JAMB 1979

If y = x2 - 2x - 3, Find the least value of y and corresponding value of x
  • A. x = 3, y = 3
  • B. x = 1, y = -3
  • C. x = 4, y = 1
  • D. x = 1, y = -4
  • E. x = 2, y = -3
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Correct Answer: Option D
Explanation
If the graph of eqn. y = x2 - 2x - 3 is plot and drawn, the lease value of y = -4 while the corresponding value of x = 1

x = 1, y = -4

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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789