Answer:
a flow diagram a word formula a symbol formula
Step-by-step explanation:
Step-by-step explanation:
"A relation between two sets is a collection of ordered pairs containing one object from each set. If the object x is from the first set and the object y is from the second set, then the objects are said to be related if the ordered pair (x,y) is in the relation. A function is a type of relation."
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