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kaylaprincess

  • one year ago

Check my work with finding the inverse function? f(x) = 2x + 3 Replace the function notation f of x with y y = 2x + 3 Now, reverse the x and y variables x = 2y + 3 Solve for y by isolating it on one side of the equal sign. -3 + x = 2y Divide each side by 2 -3 + x /2 = y Replace y with the inverse function notation. -3 + x/2 = f^-1(x)

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  1. jim_thompson5910
    • one year ago
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    Did you mean \[\Large f^{-1}(x) = -3 + \frac{x}{2}\] OR did you mean \[\Large f^{-1}(x) = \frac{-3+x}{2}\]

  2. kaylaprincess
    • one year ago
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    second one

  3. anonymous
    • one year ago
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    the second one is correct

  4. kaylaprincess
    • one year ago
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    YEEEEEE yes thank you !

  5. jim_thompson5910
    • one year ago
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    Agreed. The second one is the inverse.

  6. kaylaprincess
    • one year ago
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    thank you! kait could you medal jim for me? Btw i also have a question that goes a little more in depth that i'm having trouble with, care to give it a look? :-)

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