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Mathematics 19 Online
OpenStudy (anonymous):

Let f(x) = 1/(x+3)

OpenStudy (anonymous):

More practice... y = 1/x+3 x = 1/y+3 and then multiply both sides by (y+3)?

OpenStudy (anonymous):

@myininaya @SithsAndGiggles

OpenStudy (anonymous):

@ParthKohli

jigglypuff314 (jigglypuff314):

yes

OpenStudy (anonymous):

So I get f^-1(x) = xy+3x?

jigglypuff314 (jigglypuff314):

no isolate y xy + 3x = 1 solve for y

OpenStudy (anonymous):

Divide all the way through by x

jigglypuff314 (jigglypuff314):

no subtract 3x to the other side then divide through by x

OpenStudy (anonymous):

y = 1/x - 3

jigglypuff314 (jigglypuff314):

correct

OpenStudy (anonymous):

f^-1(x) = 1/x-3

jigglypuff314 (jigglypuff314):

(1/x) -3 and yes :)

OpenStudy (anonymous):

thanks :) I get confused about the algebraic steps because I want to do one thing and you are suppose to do another

jigglypuff314 (jigglypuff314):

yeah lol it's confusing sometimes >,<

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