Is the relation a function? Why or why not?
{(–8, –4), (–2, 0), (1, 3), (–2, 6)}
No; the relation passes the vertical-line test.
Yes; only one range value exists for each domain value.
No; two range values exist for domain value –2.
Yes; two range values exist for domain value –2.
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No; two range values exist for domain value -2. This violates the definition of a function, which states that each input (domain value) must only have one output (range value).
1 answer