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Which of the following functions is the inverse also the function? I) f(x)= X^3 II) f(x)= X^4 III) f(x)= - |X| They're can be multiple answers because my choices are a. I and II only c. I, II, and III b. I only d. III only

Mathematics
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also "a" function .. or also "the same" function?
Also a function, lol sorry
odd degrees are functionable; even degrees need a restricted domain

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Other answers:

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Choice #3 inverse is not a function: x = -|y| -> x = -(-y) or -y -> x = y or -y 2 different values of y for each x except for at the origin.
Okay, how do I figure out the other two?
Well, it looks to me like @amistre64 gave you great help on the first 2.
I had no idea what she was doing
He is mister not a missus :P
The 2 graphs in each post show the function and the inverse to the right of it. A picture tells a thousand words.
graphwise .... -|x| is basically the same as -x^2
I dont really understand the graphs... I know the third one isn't a function and I'm guessing the first isn't either...
do you know what a degree is?
no
the exponent ...
x^(even) is not invertible without restricting its domain x^(odd) is invertible
okay
I think I got it thanks ^_^
good luck :)

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