Question: ( a ) Define f : x Y by specifying that f ( 1 ) = 4 f ( 5 ) = 7 f (

(a) Define f:xY by specifying that
f(1)=4
f(5)=7
f(9)=4
Is f one-to-one? Is f onto? Explain your answers.
1
(a) Define f:xY by specifying that f(1)=4 f(5)=7 f(9)=4 Is f

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