anonymous
  • anonymous
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
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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amistre64
  • amistre64
also "a" function .. or also "the same" function?
anonymous
  • anonymous
Also a function, lol sorry
amistre64
  • amistre64
odd degrees are functionable; even degrees need a restricted domain

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More answers

amistre64
  • amistre64
|dw:1373401421696:dw|
amistre64
  • amistre64
|dw:1373401514303:dw|
anonymous
  • anonymous
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.
anonymous
  • anonymous
Okay, how do I figure out the other two?
anonymous
  • anonymous
Well, it looks to me like @amistre64 gave you great help on the first 2.
anonymous
  • anonymous
I had no idea what she was doing
swissgirl
  • swissgirl
He is mister not a missus :P
anonymous
  • anonymous
The 2 graphs in each post show the function and the inverse to the right of it. A picture tells a thousand words.
amistre64
  • amistre64
graphwise .... -|x| is basically the same as -x^2
anonymous
  • anonymous
I dont really understand the graphs... I know the third one isn't a function and I'm guessing the first isn't either...
amistre64
  • amistre64
do you know what a degree is?
anonymous
  • anonymous
no
amistre64
  • amistre64
the exponent ...
amistre64
  • amistre64
x^(even) is not invertible without restricting its domain x^(odd) is invertible
anonymous
  • anonymous
okay
anonymous
  • anonymous
I think I got it thanks ^_^
amistre64
  • amistre64
good luck :)

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