jessejones393p6pwvx jessejones393p6pwvx
  • 10-04-2018
  • Mathematics
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What is the inverse of f(x) = x + 2?
1. h(x) = x + 2
2. h(x) = x - 2
3. h(x) = 3x - 2
4.h(x) = 3x - 6

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altavistard
altavistard altavistard
  • 10-04-2018
1) replace "f(x)" with y:  y = x + 2
2) interchange x and y:  x = y + 2
3) solve this for y:  y = x - 2
4) replace y with 
         -1
       f    (x)   

Which of the four given possible answers agrees with this procedure?
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