Asked by martin
Which table represents a function?
A 2-column table with 4 rows. The first column is labeled x with entries negative 3, 0, negative 2, 8. The second column is labeled y with entries negative 1, 0, negative 1, 1.
A 2-column table with 4 rows. The first column is labeled x with entries negative 5, 0, negative 5, 6. The second column is labeled y with entries negative 5, 0, 5, negative 6.
A 2-column table with 4 rows. The first column is labeled x with entries negative 4, negative 2, negative 2, 0. The second column is labeled y with entries 8, 2, 4, 2.
A 2-column table with 4 rows. The first column is labeled x with entries negative 4, 3, 1, negative 4. The second column is labeled y with entries 2, 5, 3, 0.
All Answers 1
Answered by
GPT-5 mini
AI
Only the first table is a function.
Reason: In the first table the x-values (-3, 0, -2, 8) are all distinct, so each input has exactly one output. In the other tables some x-values repeat with different y-values (e.g. x = -5 in table 2, x = -2 in table 3, x = -4 in table 4), so they are not functions.
Reason: In the first table the x-values (-3, 0, -2, 8) are all distinct, so each input has exactly one output. In the other tables some x-values repeat with different y-values (e.g. x = -5 in table 2, x = -2 in table 3, x = -4 in table 4), so they are not functions.
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