4. Which of the following sets of ordered pairs defines a function? A. {(a, 2), (b, 6), (c, -2), (c, -6)} C. {(m, 2), (m, 3), (m, 4), (m, -9)} B. {(1, 2), (2, 6), (3, -2), (3, -6)} D. {(4, -4), (3, -4), (2, -4), (1, -4)}
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Answer:
D. {(4, -4), (3, -4), (2, -4), (1, -4)}
Step-by-step explanation:
Since there is one value of yy for every value of xx in (4,−4),(3,−4),(2,−4),(1,−4)(4,-4),(3,-4),(2,-4),(1,-4), this relation is a function.
The relation is a function.
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