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anonymous
 one year ago
is there an inverse function for f(x)=(x)/(x+2)
anonymous
 one year ago
is there an inverse function for f(x)=(x)/(x+2)

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1441863610456:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0There is an inverse function for everything :P. First, replace x with y. This is done to make the rest of the process easier. Replace every x with a y and replace every y with an x. Solve the equation from Step 2 for y. ... Replace y with f inverse of x Verify your work by checking that and are both true.

Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.1That statement is wrong, not all functions have an inverse, only functions that are one to one. @Harry21

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0whoa! now what can a rookie of 30 mins experience talk to a pro mathlete:P it was sarcasm .

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0this is what i did dw:1441864162068:dw

zzr0ck3r
 one year ago
Best ResponseYou've already chosen the best response.1@Jhannybean is absolutely right. The best way to check is to swap \(x\) and \(y\) and then find out if what you get back is a function.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i gave the steps in written format :)

zzr0ck3r
 one year ago
Best ResponseYou've already chosen the best response.1There is a messed up step \(x=\dfrac{y}{y+2}\\xy+2x=y\\xyy=2x\\y(x1)=2x\\y=\dfrac{2x}{x1}=\dfrac{2x}{1x}\)

Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.1You're right up to \[x(y+2)=y\]\[xy +2x= y\]\[xy  y =2x\]\[y(x1)=2x\]\[y=\frac{2x}{x1}\]

zzr0ck3r
 one year ago
Best ResponseYou've already chosen the best response.1\(y/y=1\) and when you divide one side of an equaton by something, you have to divide ALL terms by that one thing.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0then how would you find the inverse function fordw:1441864935207:dw
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