Mathematics
10 Online
OpenStudy (anonymous):
If f(x) = x+2/2, then what is f–1(x) ?
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OpenStudy (anonymous):
f(-1)
or
f-1(x)
?
OpenStudy (anonymous):
I guess you mean this : :)
\[\LARGE f(x)={x+2 \over 2} \quad \quad ,\quad \quad f^{-1}(x)=?\]
OpenStudy (anonymous):
f-1(x)
i haven't seen that before. but that's what it shows.
OpenStudy (anonymous):
yep kresh
OpenStudy (anonymous):
or maybe i just overlooked it in the lesson -.-
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OpenStudy (anonymous):
f^-1(x) ok?
OpenStudy (anonymous):
yup
OpenStudy (anonymous):
\[\LARGE f(x)={x+2 \over 2}\Longrightarrow f^{-1}(x)=\cfrac{1}{\cfrac{x+2}{2}}\]
OpenStudy (anonymous):
simple
1/(2x+4)
OpenStudy (anonymous):
are you sure?
here are the choices:
A.1/2x + 1
B. 2x + 1
C. 2x – 2
D. 2x + 2
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OpenStudy (anonymous):
ops no
is: 2/x+2
OpenStudy (anonymous):
well... every time I had something similar I did it like this, I hope I didn't screw them all up ! O_O lol
OpenStudy (anonymous):
2/x +1
OpenStudy (anonymous):
2/x + 1 or 2x+1??
im not quite sure xD
OpenStudy (anonymous):
sorry to ask but... how come "+1" ??
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OpenStudy (anonymous):
step1: 1/(x+2/2)
step2: 2/x+2
step3: 2/x+1
OpenStudy (anonymous):
ah.. I get it 2/x+2/2 :F
OpenStudy (anonymous):
fontez your step 2 and step 3 doesn't seem to stay calm , I think they're arguing about something ! lol
OpenStudy (anonymous):
?
OpenStudy (anonymous):
idk but both of ur answers are wrong xDDD
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OpenStudy (anonymous):
anyway thanks for answering
OpenStudy (anonymous):
i cant give medals for both of u so im not giving any medals :D