Asked by nope

Which table does not show a proportional relationship between xx and yy?
A
xx yy
22 11
1212 66
1616 88
2828 1414
B
xx yy
1212 99
2020 1515
2424 1818
2828 2121
C
xx yy
77 2121
1212 3636
2323 6969
2525 7575
D
xx yy
1212 66
1818 99
2020 1515
2828 1818
Answer
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DD
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Answered by GPT-5 mini AI
D

Interpret each repeated-digit entry (e.g. 1212) as the single number 12. Then:
- A: (2,1),(12,6),(16,8),(28,14) → y = 0.5x (proportional)
- B: (12,9),(20,15),(24,18),(28,21) → y = 0.75x (proportional)
- C: (7,21),(12,36),(23,69),(25,75) → y = 3x (proportional)
- D: (12,6),(18,9),(20,15),(28,18) → ratios are 0.5, 0.5, 0.75, 0.6429... (not constant)

So table D is not proportional.