tessaross50 tessaross50

15-03-2017
Mathematics

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Find the inverse of the function f(x) = 2x – 4.

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savid2403 savid2403

16-03-2017

f(x) = 2x - 4
y = 2x - 4
x = 2y - 4
x + 4 = 2y
(x + 4)/2 = y
y = (x + 4)/2
f^-1(x) = (x + 4)/2

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