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If a function is defined by f(x + 1) = 3x2 - x + 4,...

Mathematics
JAMB 1980

If a function is defined by f(x + 1) = 3x2 - x + 4, Find f(0).

  • A. 4
  • B. 6
  • C. 9
  • D. 8
  • E. 2
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Correct Answer: Option D
Explanation

f(x + 1) = 3x2 - x + 4

f(0) = f(x + 1)

x + 1 = 0 ===> x = -1

f(0) = 3(-1)2 - (-1) + 4

f(0) = 3 + 1 + 4

= 8


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