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Question 114

Which tables show y directly proportional to x? Select all that apply.

  1. Pairs (1, 4), (3, 12), and (5, 20)Correct answer
  2. Pairs (1, 5), (2, 9), and (3, 13)
  3. Pairs (2, 7), (4, 14), and (9, 31.5)Correct answer
  4. Pairs (3, 8), (6, 15), and (12, 29)

Explanation

The pairs 1 to 4, 3 to 12, and 5 to 20 all have quotient 4, while the pairs 2 to 7, 4 to 14, and 9 to 31.5 all have quotient 3.5. The table beginning with 1 to 5 is the closest false set because its later quotients change even though both columns keep increasing.

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Question 114: Which tables show y directly proportional to x? Select all… · Ratios and Proportions · Questena