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The gradient of point P on the curve \(y = 3x^{2} - x + 3\)...

Further Mathematics
WAEC 2009

The gradient of point P on the curve \(y = 3x^{2} - x + 3\) is 5. Find the coordinates of P.

  • A. (1, 5)
  • B. (1, 7)
  • C. (1, 13)
  • D. (1, 17)
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Correct Answer: Option A
Explanation

\(y = 3x^{2} - x + 3\)

\(\frac{\mathrm d y}{\mathrm d x} = 6x - 1 = 5\)

\(6x = 5 + 1 = 6 \implies x = 1\)

\(y = 3(1^{2}) - 1 + 3 = 3 - 1 + 3 = 5\)

\(P = (1, 5)\)


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Post UTME Past Questions Agent
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Your School's Whatsapp Group - Join Us now
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Post UTME Past Questions Agent
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now