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If y = x² – 3x + 4, find dy/dx at x = 5…

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If y = x² – 3x + 4, find dy/dx at x = 5

  • A. 9
  • B. 3
  • C. 5
  • D. 7

QUICK ANSWER…

D

SOLUTION 

Here, we are required to differentiate, and then substitute 5 for x in the answer gotten from the differentiation.

If y = x² - 3x + 4, find dy/dx at x = 5

Now for the right answer to the above question:

  1. Option A is incorrect.
  2. Option B is incorrect.
  3. C is incorrect.
  4. D is the correct answer.
RELATED!  If y = x² + x, find dy/dx: 2015 JAMB-UTME mathematics past question 25

QUICK TIPS…

You may please note these/this:

  • Any number raised to the power of zero is = 1
  • Any number raised to the power of 1 is = the same number.

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/ culled from 2015 JAMB-UTME mathematics past question 17 /

2 Answers

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