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OpenStudy (anonymous):
Find the inverse function of f. f(x) = 7x + 2
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OpenStudy (slaaibak):
y = 7x + 2 switching y and x: x = 7y + 2 In terms of y: 7y = x-2 y = (x-2)/7
OpenStudy (slaaibak):
\[f^{-1}(x) = {x-2 \over 7}\]
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