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math question week 8 part 3

What are the steps to find the inverse of a function equation?

For example, what is the inverse of f(x) = 2x -7?

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Parviz F. | Mathematics professor at Community CollegesMathematics professor at Community Colle...
4.8 4.8 (4 lesson ratings) (4)
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f(X ) = 2X -7
 
 Change  f(x ) to Y
 
  Y = 2X -7
 
  Solve for X in terms of Y:
 
    X = (Y + 7 ) /2 
 
   Change X to f-1 ( X) and Y for X
 
 
     f-1 (x ) = 1/2 X +7/2
Stephen W. | Othello, Eltopia, Connell, Pasco, West Pasco - I am in your area!Othello, Eltopia, Connell, Pasco, West P...
4.9 4.9 (43 lesson ratings) (43)
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Set up the equation as y=2x-7
Solve for 'x'
Switch 'x' and 'y'. This is your inverse.