shel5berchelby shel5berchelby

05-05-2016
Mathematics

contestada

Let f(x) = 2x + 5. Simplify: f^-1(f(4))

1/13
-13
13
31
4

Respuesta :

meerkat18 meerkat18

12-05-2016

f(x) = 2x + 5

x = 4

f(4) = 2(4) + 5
f(4) = 8 + 5
f(4) = 13

f^-1(f(4)) = 1 / 2(4) + 5 = 1 / 8 + 5 = 1/13

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