Respuesta :

limacharliesierra
f(x) = 2x + 1

To find the inverse of a function you just need to switch the x by y or vice-versa:

-> y = 2x + 1
-> x = 2y + 1

After that you isolate the y again:

-> 2y = x - 1

-> y = (x-1)/2
-> f^-1 (x) = (x-1)/2

Answer:
[tex]f^{ - 1} (x) = (x - 1) \div 2[/tex]

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good job