Question: Exercise 6: Sets A and X are defined as: A = { a, b, c, d } X = { 1, 2, 3, 4 }

Exercise 6: Sets A and X are defined as: A = { a, b, c, d } X = { 1, 2, 3, 4 } A function f: A X is defined to be f = { (a, 3), (b, 1), (c, 4), (d, 1) } a. What is the target (or co-domain) of function f?

b. What is the range of function f?

c. What is f(c)? d. What is the domain of function f?

Exercise 8: For each of the following functions, indicate whether the function has a well-defined inverse. If the inverse is well-defined, give the input/output relationship of f^-1.

a. f: Z Z. f(x) = 2x + 3

b. f: R R. f(x) = 2x + 3

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