
Is the set of ordered pairs a function? Why or why not? (pp. 57-60)

To find: Is the set of ordered pairs a function? Why or why not?
Answer to Problem 1AYU
Solution:
The given set of ordered pairs is not a function. Because, two different elements in the domain, 1 and 2, both correspond to 3.
If so, it is not a function.
Explanation of Solution
By a definition, that a function from into is a relation that associates with each element of exactly one element of .
Given:
The set of ordered pairs .
Calculation:
Here, two elements in the domain correspond to the same element in the range. Two different elements in the domain, 1 and 2, both correspond to 3.
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