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Meehan98

  • one year ago

Okay, need some help, please!! Identify the inverse of f(x) = −1 + x^3. Determine whether it is a function and state its domain and range. The answer will be posted below..

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  1. Meehan98
    • one year ago
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    \[\sqrt[3]{x+1}\] is the inverse and it's a function with domain and rang being all real numbers.

  2. Meehan98
    • one year ago
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    I did the horizontal line test to the original function, which was instructed, and found that it was not a function, but after doing it algebraically, it is a function. Can someone tell me what I did wrong?

  3. IrishBoy123
    • one year ago
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    |dw:1441900050111:dw| do your tests on these?

  4. IrishBoy123
    • one year ago
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    |dw:1441900102084:dw|

  5. Meehan98
    • one year ago
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    Okay, based on the graph, they're both functions because they pass the horizontal line test.

  6. Meehan98
    • one year ago
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    The inverse of f(x)=x^2-4 is +- \[\sqrt{x+4}\] If you graph both of those, one of them is a function while the inverse is a function.

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