Unformatted text preview: Domain: bit strings Range: the set of integers 3. (10 points) Determine if each of these following functions is a bijection from R ¯ to R ¯ . (a) f ( x ) = 2 x + 1 yes (b) f ( x ) = x 2 + 1 No; f(2)=5, f(2)=5 4. (10 points) Find the inverse of the function f ( x ) = ax + b from R ¯ to R ¯ , where a and b are constants, with a 6 = 0. Show that it is an inverse. Problem 31 on page 109. Answer on page S11 of the text book. 1...
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 Spring '08
 SaktiPramanik
 Computer Science, Set Theory, Bijection

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