4.5 Exercises Do the exercises, and check your work. Objective 1: Define and Identify Relations, Functions, Domain, and Range 1) a) What is a relation? b) What is a function? c) Give an example of a relation that is also a function. 2) Give an example of a relation that is not a function. Identify the domain and range of each relation, and determine whether each relation is a function. 3) {(5, 13), (2, 6), (1, 4), (8, 3)} 4) {(0, 3), (1, 4), (1, 2), (16, 5), (16, 1)} 5) {(9, 1), (25, 3), (1, 1), (9, 5), (25, 7)} 6) e (4, 2), a3, 1 2 b, a1, 1 2 b, (0, 2) f 7) 1 2 5 8 7 3 12 19 8) Apple Chocolate Corn Fruit Candy Vegetable 9) x y 5 5 5 5 10) x y 5 5 5 5 11) y 4 6 x 5 5 12) x y 5 5 5 5 13) x y 6 6 6 6 14) x y 5 5 5 5 www.mhhe.com/messersmith SECTION 4.5 Introduction to Functions 209
messersmith_power_intermediate_algebra_1e_ch4_7_10
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