The answer key below is WRONG on problem #31. The answer should be d = 12.
Also as discussed in class, the answers to #18 were for a different problem. The mapping should point to the 0,2,4,and 6, with two arrows ending at 2 and 4. The set of ordered pairs should be: {(2,4), (3, 2), (4, 0), (5, 2), (6, 4), (7, 6)}, the domain is 2, 3, 4, 5, 6, 7, the range is 0, 2, 4, 6, and it is a function.
Click on this PDF document for everything but the last page: Review Key
Click here for #44: graph1
Click here for #45: graph2
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