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animalsavior94
Group Title
determine if the function has an inverse that is a function. justify your answer. if it does, find the inverse function:
f(x)=(x+3)/(x2)
 3 years ago
 3 years ago
animalsavior94 Group Title
determine if the function has an inverse that is a function. justify your answer. if it does, find the inverse function: f(x)=(x+3)/(x2)
 3 years ago
 3 years ago

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satellite73 Group TitleBest ResponseYou've already chosen the best response.2
ok this takes a bit of algebra
 3 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.2
rewrite as \[y=\frac{x+3}{x2}\] and then either solve for x or switch x and y and solve for y. i will do it the second way
 3 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.2
\[x=\frac{y+3}{y2}\] multiply to get rid of the denominator \[x(y2)=y+3\] multiply out on the left \[xy2x=y+3\]
 3 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.2
put all the y's on one side \[xyy=2x+3\] factor out the y \[y(x1)=2x+3\] divide to get y by itself \[y=\frac{2x+3}{x1}\]
 3 years ago

animalsavior94 Group TitleBest ResponseYou've already chosen the best response.0
and thats the inverse right?
 3 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.2
that is it!
 3 years ago

animalsavior94 Group TitleBest ResponseYou've already chosen the best response.0
thanks!:)
 3 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.2
i mean it is it when you write \[f^{1}=\frac{2x+3}{x1}\]
 3 years ago
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