anonymous
  • anonymous
inverse of each function x=-5 and f(x)=1/5x+5
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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Ac3
  • Ac3
The first one I believe has no inverse. There has to be 2 variables x and y. Keep in mind f(x) = y. They are the same thing.
Ac3
  • Ac3
Now on to the 2nd one.
anonymous
  • anonymous
okay. great!

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Ac3
  • Ac3
Since f(x)=y you can now replace.
Ac3
  • Ac3
so the 2nd is...
anonymous
  • anonymous
no clue..
Ac3
  • Ac3
|dw:1439166103268:dw|
Ac3
  • Ac3
Is that how it looks when you replace f(x) with y?
anonymous
  • anonymous
when i did it yes.
Ac3
  • Ac3
is 5x+5 all in the denominator is what I'm asking.
anonymous
  • anonymous
oh.. no
anonymous
  • anonymous
its 1/5x
Ac3
  • Ac3
draw it just to make sure I do the right one.
anonymous
  • anonymous
|dw:1439166389332:dw|
Ac3
  • Ac3
Ok I'm going to show the straightforward way.
anonymous
  • anonymous
sorry my laptop is being really slow
Ac3
  • Ac3
replace y with x so now you have..
anonymous
  • anonymous
theres no y.
Ac3
  • Ac3
|dw:1439166349292:dw|
Ac3
  • Ac3
f(x) is the same thing as y
anonymous
  • anonymous
okay you meant replace x with y i got ya now.
Ac3
  • Ac3
now you solve for y
Ac3
  • Ac3
that's it.
Ac3
  • Ac3
and when your done just to be proper since you started with f(x) put f(x) in back for y.
anonymous
  • anonymous
so it'll be f(x)=1/5(5-x) ?
Ac3
  • Ac3
|dw:1439166555309:dw|
Ac3
  • Ac3
|dw:1439166694002:dw|
anonymous
  • anonymous
so i was right?
Ac3
  • Ac3
yes make sure you call f(x) f inverse of x
Ac3
  • Ac3
That's it man.
anonymous
  • anonymous
awesome!!!!!!!!!!!!!! thanks!!
Ac3
  • Ac3
no problem.
Ac3
  • Ac3
become my fan in case you need my help in the future.
Ac3
  • Ac3
later.
anonymous
  • anonymous
great!

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