1 Which of the following statements are true?
I. Any set of ordered pairs is a relation.
II. The range of a relation is the set containing the
first members of its ordered pairs.
III. The dependent variable in a relation is the variable
used for the range.
IV. A function is a relation in which each range value
is paired with exactly one domain value.
AI
B II
C I and III
DII and IV

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