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18-06-2019
Mathematics

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Which function below is the inverse of f(x)=7x-1/2

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mwambabrighton8 mwambabrighton8

18-06-2019

We write f(x) in terms of y I.e y=7x-1/2.

Fractions are sometimes ambiguous, we eliminate the fraction by multiplaying the entire function by 2.so as to get 2y=14x-1.

Make x the subject, x=2y+1/14,

Thus the inverse f(x)=2x+1/14

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