Let X = {1, 5, 9} and Y = {3, 4, 7}.a. Define f: X ? Y by
Chapter 7, Problem 6E(choose chapter or problem)
Problem 6E
Let X = {1, 5, 9} and Y = {3, 4, 7}.
a. Define f: X → Y by specifying that
f(1) = 4, f(5) = 7, f(9) = 4.
Is f one-to-one? Is f onto? Explain your answers.
b. Define g: X → Y by specifying that
g(1)= 7, g(5) = 3, g(9) = 4.
Is g one-to-one? Is g onto? Explain your answers.
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