Question

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Determine whether each relation is a function. Explain.



{(1, 12), (4, 18), (7, 22), (10, 28)}

a.
yes; Each element of the domain is paired with exactly one element of the range.

b.
yes; Each element of the range is paired with exactly one element of the range.

c.
no; Some values of the domain are paired with more than one value of the range.

d.
no; Some values of the range are paired with more than one value of the domain.

Answer 1

a.

yes; Each element of the domain is paired with exactly one element of the range.

Explanation:

To be a function, every input should have a unique output