Which table has a constant of proportionality between y and x of 1/4?
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Answer: Choice B
Pick any row to find that y/x is equal to 1/4
For example, in the second row we can immediately see that y/x = 1/4 since x = 4 and y = 1 pair up together. The other two rows involve a bit more work, but you should find the result simplifies to 1/4 as well.