dayonna17
dayonna17
06-10-2016
Mathematics
contestada
if f(x)=4x-8, what is f^-1(x)
Respuesta :
Alphas
Alphas
06-10-2016
x = 4x - 8
let's replace x with y.
y = 4x - 8
y + 8 = 4x
x = y/4 + 8/4
x = y/4 + 2
and now replace y with x.
so x = x/4 + 2
and inverse f^-1
f^-1 (x) = x/4 + 2
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