Question

1) Consider f:
R
R
given by f(x) = 3 - 4x. Show that fis invertible. Find the inverse of f.
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Answer 1

Answer:

$f(x) = 3 - 4x \\ f(0) = 3 - 4( 0 ) \\ f(0) = 3 - 0 \\ f(0 ) = 3$

$x = 0$

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