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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

|dw:1373401421696:dw|

|dw:1373401514303:dw|

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

graphwise .... -|x| is basically the same as -x^2

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 :)