Maths-
SAT
Easy

Question

The function f is defined by f(x) = x2 - 5x + 6. What is the value of f (4)?

  1. 0
  2. 2
  3. 12
  4. 30

The correct answer is: 2


                       f(x) = x2 – 5x + 6
                       f(4) = 42 – 5(4) + 6
    = 16 – 20 + 6
    =  22 - 20
    =  2

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