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OpenStudy (anonymous):
Please help! Let f(x) = √(2-x) a) Why does f have an inverse that is a function? b) Find a rule for f^-1(x) and state its domain.
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OpenStudy (anonymous):
a) because it's a parabola
OpenStudy (goformit100):
\[f^-1\]
OpenStudy (anonymous):
what is meant by a rule?
OpenStudy (anonymous):
I have no idea what it means by rule. That's why I'm asking. AHH
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