SAT Math Question of the Day

Math Category: Functions:

Q: If h(x) = x2 - 4x + 12, then h(3) =

  1. 6
  2. 9
  3. 12
  4. 15
  5. 33

UNANSWERED.

The correct answer is B.

A: 9 is the correct answer. In a function problem like this plug in the 3 wherever the x occurs.
h(x) = x2 - 4x + 12
h(3) = 32 - 4(3) + 12
      = 9 - 12 + 12
      = 9