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Josh
Josh asked in Science & MathematicsMathematics · 6 years ago

How do I find the inverse?

f(x) = 1/1+x

3 Answers

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  • andrew
    6 years ago

    So that y= 1 Divided by 1 + whatever your main X number is

    So lets say X is 2

    1 divided by 1 is ... well.. 1

    so 1 + 2 = 3

    Now just do this for the chart you are using and you will be good to go.

    Also just a tip If you having a graphing calculator Press the y= button at the top insert whatever your x Equation is and then press 2nd and then Graph and find the numbers you need :P

  • gile
    Lv 7
    6 years ago

    Given function:

    y = 1/(1 + x) ; x ≠ -1

    Inverse function:

    x = 1/(1 + y)

    1 + y = 1/x

    y = 1/x – 1

    y = (1 – x)/x; x ≠ 0 (answer)

  • ?
    Lv 7
    6 years ago

    f(x) = 1+x

    x = 1+y

    y = x-1

    f^-1(x) = x-1

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